Home / 31,511.18-47,275.95-9,325.14

Finding the Fourth Proportional to 31,511.18, 47,275.95 and 9,325.14

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Solution

The fourth proportional to 31,511.18, 47,275.95 and 9,325.14 is: 13,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.18 : 47,275.95 = 9,325.14 : x
  2. Step 2: Convert to fraction form
    31,511.18/47,275.95 = 9,325.14/x
  3. Step 3: Cross multiply
    31,511.18x = 47,275.95 × 9,325.14
  4. Step 4: Simplify right side
    31,511.18x = 440,854,852.38
  5. Step 5: Solve for x
    x = 440,854,852.38/31,511.18
  6. Step 6: Final answer
    x = 13,990.43

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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.