Home / 42,370.38-63,556.02-12,788.47

Finding the Fourth Proportional to 42,370.38, 63,556.02 and 12,788.47

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Solution

The fourth proportional to 42,370.38, 63,556.02 and 12,788.47 is: 19,182.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,370.38 : 63,556.02 = 12,788.47 : x
  2. Step 2: Convert to fraction form
    42,370.38/63,556.02 = 12,788.47/x
  3. Step 3: Cross multiply
    42,370.38x = 63,556.02 × 12,788.47
  4. Step 4: Simplify right side
    42,370.38x = 812,784,255.09
  5. Step 5: Solve for x
    x = 812,784,255.09/42,370.38
  6. Step 6: Final answer
    x = 19,182.84

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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.