Home / 31,988.25-47,982.51-9,799.92

Finding the Fourth Proportional to 31,988.25, 47,982.51 and 9,799.92

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Solution

The fourth proportional to 31,988.25, 47,982.51 and 9,799.92 is: 14,699.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,988.25 : 47,982.51 = 9,799.92 : x
  2. Step 2: Convert to fraction form
    31,988.25/47,982.51 = 9,799.92/x
  3. Step 3: Cross multiply
    31,988.25x = 47,982.51 × 9,799.92
  4. Step 4: Simplify right side
    31,988.25x = 470,224,759.40
  5. Step 5: Solve for x
    x = 470,224,759.40/31,988.25
  6. Step 6: Final answer
    x = 14,699.92

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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.