Home / 31,518.39-47,283.20-10,459.70

Finding the Fourth Proportional to 31,518.39, 47,283.20 and 10,459.70

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Solution

The fourth proportional to 31,518.39, 47,283.20 and 10,459.70 is: 15,691.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,518.39 : 47,283.20 = 10,459.70 : x
  2. Step 2: Convert to fraction form
    31,518.39/47,283.20 = 10,459.70/x
  3. Step 3: Cross multiply
    31,518.39x = 47,283.20 × 10,459.70
  4. Step 4: Simplify right side
    31,518.39x = 494,567,798.33
  5. Step 5: Solve for x
    x = 494,567,798.33/31,518.39
  6. Step 6: Final answer
    x = 15,691.40

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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.