Home / 31,712.81-47,569.32-10,652.24

Finding the Fourth Proportional to 31,712.81, 47,569.32 and 10,652.24

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Solution

The fourth proportional to 31,712.81, 47,569.32 and 10,652.24 is: 15,978.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712.81 : 47,569.32 = 10,652.24 : x
  2. Step 2: Convert to fraction form
    31,712.81/47,569.32 = 10,652.24/x
  3. Step 3: Cross multiply
    31,712.81x = 47,569.32 × 10,652.24
  4. Step 4: Simplify right side
    31,712.81x = 506,719,932.20
  5. Step 5: Solve for x
    x = 506,719,932.20/31,712.81
  6. Step 6: Final answer
    x = 15,978.40

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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.