Home / 20,732.08-28,637.64-15,365.52

Finding the Fourth Proportional to 20,732.08, 28,637.64 and 15,365.52

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Solution

The fourth proportional to 20,732.08, 28,637.64 and 15,365.52 is: 21,224.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.08 : 28,637.64 = 15,365.52 : x
  2. Step 2: Convert to fraction form
    20,732.08/28,637.64 = 15,365.52/x
  3. Step 3: Cross multiply
    20,732.08x = 28,637.64 × 15,365.52
  4. Step 4: Simplify right side
    20,732.08x = 440,032,230.17
  5. Step 5: Solve for x
    x = 440,032,230.17/20,732.08
  6. Step 6: Final answer
    x = 21,224.70

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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.