Home / 15,631.89-21,557.96-10,332.06

Finding the Fourth Proportional to 15,631.89, 21,557.96 and 10,332.06

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Solution

The fourth proportional to 15,631.89, 21,557.96 and 10,332.06 is: 14,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.89 : 21,557.96 = 10,332.06 : x
  2. Step 2: Convert to fraction form
    15,631.89/21,557.96 = 10,332.06/x
  3. Step 3: Cross multiply
    15,631.89x = 21,557.96 × 10,332.06
  4. Step 4: Simplify right side
    15,631.89x = 222,738,084.54
  5. Step 5: Solve for x
    x = 222,738,084.54/15,631.89
  6. Step 6: Final answer
    x = 14,248.95

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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.