Home / 28,320.01-39,080.77-15,573.22

Finding the Fourth Proportional to 28,320.01, 39,080.77 and 15,573.22

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Solution

The fourth proportional to 28,320.01, 39,080.77 and 15,573.22 is: 21,490.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.01 : 39,080.77 = 15,573.22 : x
  2. Step 2: Convert to fraction form
    28,320.01/39,080.77 = 15,573.22/x
  3. Step 3: Cross multiply
    28,320.01x = 39,080.77 × 15,573.22
  4. Step 4: Simplify right side
    28,320.01x = 608,613,292.34
  5. Step 5: Solve for x
    x = 608,613,292.34/28,320.01
  6. Step 6: Final answer
    x = 21,490.58

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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.