Home / 31,990.05-47,985.07-17,178.59

Finding the Fourth Proportional to 31,990.05, 47,985.07 and 17,178.59

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Solution

The fourth proportional to 31,990.05, 47,985.07 and 17,178.59 is: 25,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,990.05 : 47,985.07 = 17,178.59 : x
  2. Step 2: Convert to fraction form
    31,990.05/47,985.07 = 17,178.59/x
  3. Step 3: Cross multiply
    31,990.05x = 47,985.07 × 17,178.59
  4. Step 4: Simplify right side
    31,990.05x = 824,315,952.88
  5. Step 5: Solve for x
    x = 824,315,952.88/31,990.05
  6. Step 6: Final answer
    x = 25,767.89

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Similar ratio
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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.