Home / 21,533.38-32,270-10,437.12

Finding the Fourth Proportional to 21,533.38, 32,270 and 10,437.12

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Solution

The fourth proportional to 21,533.38, 32,270 and 10,437.12 is: 15,641.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.38 : 32,270 = 10,437.12 : x
  2. Step 2: Convert to fraction form
    21,533.38/32,270 = 10,437.12/x
  3. Step 3: Cross multiply
    21,533.38x = 32,270 × 10,437.12
  4. Step 4: Simplify right side
    21,533.38x = 336,805,862.40
  5. Step 5: Solve for x
    x = 336,805,862.40/21,533.38
  6. Step 6: Final answer
    x = 15,641.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.