Home / 31,565.28-47,315.10-12,837.26

Finding the Fourth Proportional to 31,565.28, 47,315.10 and 12,837.26

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Solution

The fourth proportional to 31,565.28, 47,315.10 and 12,837.26 is: 19,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,565.28 : 47,315.10 = 12,837.26 : x
  2. Step 2: Convert to fraction form
    31,565.28/47,315.10 = 12,837.26/x
  3. Step 3: Cross multiply
    31,565.28x = 47,315.10 × 12,837.26
  4. Step 4: Simplify right side
    31,565.28x = 607,396,240.63
  5. Step 5: Solve for x
    x = 607,396,240.63/31,565.28
  6. Step 6: Final answer
    x = 19,242.54

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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.