Home / 31,457.16-47,127.15-15,644.07

Finding the Fourth Proportional to 31,457.16, 47,127.15 and 15,644.07

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Solution

The fourth proportional to 31,457.16, 47,127.15 and 15,644.07 is: 23,436.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.16 : 47,127.15 = 15,644.07 : x
  2. Step 2: Convert to fraction form
    31,457.16/47,127.15 = 15,644.07/x
  3. Step 3: Cross multiply
    31,457.16x = 47,127.15 × 15,644.07
  4. Step 4: Simplify right side
    31,457.16x = 737,260,433.50
  5. Step 5: Solve for x
    x = 737,260,433.50/31,457.16
  6. Step 6: Final answer
    x = 23,436.97

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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.