Home / 37,984.48-52,418.10-20,988.70

Finding the Fourth Proportional to 37,984.48, 52,418.10 and 20,988.70

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Solution

The fourth proportional to 37,984.48, 52,418.10 and 20,988.70 is: 28,964.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,984.48 : 52,418.10 = 20,988.70 : x
  2. Step 2: Convert to fraction form
    37,984.48/52,418.10 = 20,988.70/x
  3. Step 3: Cross multiply
    37,984.48x = 52,418.10 × 20,988.70
  4. Step 4: Simplify right side
    37,984.48x = 1,100,187,775.47
  5. Step 5: Solve for x
    x = 1,100,187,775.47/37,984.48
  6. Step 6: Final answer
    x = 28,964.14

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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.