Home / 37,890.38-52,290.35-21,123.38

Finding the Fourth Proportional to 37,890.38, 52,290.35 and 21,123.38

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Solution

The fourth proportional to 37,890.38, 52,290.35 and 21,123.38 is: 29,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,890.38 : 52,290.35 = 21,123.38 : x
  2. Step 2: Convert to fraction form
    37,890.38/52,290.35 = 21,123.38/x
  3. Step 3: Cross multiply
    37,890.38x = 52,290.35 × 21,123.38
  4. Step 4: Simplify right side
    37,890.38x = 1,104,548,566.31
  5. Step 5: Solve for x
    x = 1,104,548,566.31/37,890.38
  6. Step 6: Final answer
    x = 29,151.16

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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.