Home / 21,019.60-29,007.02-11,588.32

Finding the Fourth Proportional to 21,019.60, 29,007.02 and 11,588.32

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Solution

The fourth proportional to 21,019.60, 29,007.02 and 11,588.32 is: 15,991.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,019.60 : 29,007.02 = 11,588.32 : x
  2. Step 2: Convert to fraction form
    21,019.60/29,007.02 = 11,588.32/x
  3. Step 3: Cross multiply
    21,019.60x = 29,007.02 × 11,588.32
  4. Step 4: Simplify right side
    21,019.60x = 336,142,630.01
  5. Step 5: Solve for x
    x = 336,142,630.01/21,019.60
  6. Step 6: Final answer
    x = 15,991.87

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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.