Home / 22,929.77-31,656.89-14,985.29

Finding the Fourth Proportional to 22,929.77, 31,656.89 and 14,985.29

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Solution

The fourth proportional to 22,929.77, 31,656.89 and 14,985.29 is: 20,688.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,929.77 : 31,656.89 = 14,985.29 : x
  2. Step 2: Convert to fraction form
    22,929.77/31,656.89 = 14,985.29/x
  3. Step 3: Cross multiply
    22,929.77x = 31,656.89 × 14,985.29
  4. Step 4: Simplify right side
    22,929.77x = 474,387,677.15
  5. Step 5: Solve for x
    x = 474,387,677.15/22,929.77
  6. Step 6: Final answer
    x = 20,688.72

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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.