Home / 20,349.17-28,083.61-11,398.52

Finding the Fourth Proportional to 20,349.17, 28,083.61 and 11,398.52

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Solution

The fourth proportional to 20,349.17, 28,083.61 and 11,398.52 is: 15,730.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.17 : 28,083.61 = 11,398.52 : x
  2. Step 2: Convert to fraction form
    20,349.17/28,083.61 = 11,398.52/x
  3. Step 3: Cross multiply
    20,349.17x = 28,083.61 × 11,398.52
  4. Step 4: Simplify right side
    20,349.17x = 320,111,674.71
  5. Step 5: Solve for x
    x = 320,111,674.71/20,349.17
  6. Step 6: Final answer
    x = 15,730.94

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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.