Home / 31,416.10-47,129.92-10,357.38

Finding the Fourth Proportional to 31,416.10, 47,129.92 and 10,357.38

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Solution

The fourth proportional to 31,416.10, 47,129.92 and 10,357.38 is: 15,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,416.10 : 47,129.92 = 10,357.38 : x
  2. Step 2: Convert to fraction form
    31,416.10/47,129.92 = 10,357.38/x
  3. Step 3: Cross multiply
    31,416.10x = 47,129.92 × 10,357.38
  4. Step 4: Simplify right side
    31,416.10x = 488,142,490.81
  5. Step 5: Solve for x
    x = 488,142,490.81/31,416.10
  6. Step 6: Final answer
    x = 15,537.97

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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.