Home / 42,407.89-63,514.95-20,236.84

Finding the Fourth Proportional to 42,407.89, 63,514.95 and 20,236.84

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Solution

The fourth proportional to 42,407.89, 63,514.95 and 20,236.84 is: 30,309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,407.89 : 63,514.95 = 20,236.84 : x
  2. Step 2: Convert to fraction form
    42,407.89/63,514.95 = 20,236.84/x
  3. Step 3: Cross multiply
    42,407.89x = 63,514.95 × 20,236.84
  4. Step 4: Simplify right side
    42,407.89x = 1,285,341,721.97
  5. Step 5: Solve for x
    x = 1,285,341,721.97/42,407.89
  6. Step 6: Final answer
    x = 30,309.02

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1.5x scale

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.