Home / 15,631.64-21,557.60-10,331.82

Finding the Fourth Proportional to 15,631.64, 21,557.60 and 10,331.82

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Solution

The fourth proportional to 15,631.64, 21,557.60 and 10,331.82 is: 14,248.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,631.64 : 21,557.60 = 10,331.82 : x
  2. Step 2: Convert to fraction form
    15,631.64/21,557.60 = 10,331.82/x
  3. Step 3: Cross multiply
    15,631.64x = 21,557.60 × 10,331.82
  4. Step 4: Simplify right side
    15,631.64x = 222,729,242.83
  5. Step 5: Solve for x
    x = 222,729,242.83/15,631.64
  6. Step 6: Final answer
    x = 14,248.62

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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.