Home / 21,455,724.20-29,608,674.77-15,973,615.04

Finding the Fourth Proportional to 21,455,724.20, 29,608,674.77 and 15,973,615.04

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Solution

The fourth proportional to 21,455,724.20, 29,608,674.77 and 15,973,615.04 is: 22,043,421.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455,724.20 : 29,608,674.77 = 15,973,615.04 : x
  2. Step 2: Convert to fraction form
    21,455,724.20/29,608,674.77 = 15,973,615.04/x
  3. Step 3: Cross multiply
    21,455,724.20x = 29,608,674.77 × 15,973,615.04
  4. Step 4: Simplify right side
    21,455,724.20x = 472,957,572,392,629.12
  5. Step 5: Solve for x
    x = 472,957,572,392,629.12/21,455,724.20
  6. Step 6: Final answer
    x = 22,043,421.52

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.