Home / 31,967.12-47,966.90-21,557

Finding the Fourth Proportional to 31,967.12, 47,966.90 and 21,557

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Solution

The fourth proportional to 31,967.12, 47,966.90 and 21,557 is: 32,346.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,967.12 : 47,966.90 = 21,557 : x
  2. Step 2: Convert to fraction form
    31,967.12/47,966.90 = 21,557/x
  3. Step 3: Cross multiply
    31,967.12x = 47,966.90 × 21,557
  4. Step 4: Simplify right side
    31,967.12x = 1,034,022,463.30
  5. Step 5: Solve for x
    x = 1,034,022,463.30/31,967.12
  6. Step 6: Final answer
    x = 32,346.44

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1.5x scale

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.