Home / 37,764.50-52,115.10-21,000.74

Finding the Fourth Proportional to 37,764.50, 52,115.10 and 21,000.74

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Solution

The fourth proportional to 37,764.50, 52,115.10 and 21,000.74 is: 28,981.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,764.50 : 52,115.10 = 21,000.74 : x
  2. Step 2: Convert to fraction form
    37,764.50/52,115.10 = 21,000.74/x
  3. Step 3: Cross multiply
    37,764.50x = 52,115.10 × 21,000.74
  4. Step 4: Simplify right side
    37,764.50x = 1,094,455,665.17
  5. Step 5: Solve for x
    x = 1,094,455,665.17/37,764.50
  6. Step 6: Final answer
    x = 28,981.07

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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.