Home / 37,982.58-52,417.53-20,987.70

Finding the Fourth Proportional to 37,982.58, 52,417.53 and 20,987.70

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Solution

The fourth proportional to 37,982.58, 52,417.53 and 20,987.70 is: 28,963.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,982.58 : 52,417.53 = 20,987.70 : x
  2. Step 2: Convert to fraction form
    37,982.58/52,417.53 = 20,987.70/x
  3. Step 3: Cross multiply
    37,982.58x = 52,417.53 × 20,987.70
  4. Step 4: Simplify right side
    37,982.58x = 1,100,123,394.38
  5. Step 5: Solve for x
    x = 1,100,123,394.38/37,982.58
  6. Step 6: Final answer
    x = 28,963.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.