Home / 42,016.32-62,986.33-20,962.80

Finding the Fourth Proportional to 42,016.32, 62,986.33 and 20,962.80

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Solution

The fourth proportional to 42,016.32, 62,986.33 and 20,962.80 is: 31,425.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,016.32 : 62,986.33 = 20,962.80 : x
  2. Step 2: Convert to fraction form
    42,016.32/62,986.33 = 20,962.80/x
  3. Step 3: Cross multiply
    42,016.32x = 62,986.33 × 20,962.80
  4. Step 4: Simplify right side
    42,016.32x = 1,320,369,549.92
  5. Step 5: Solve for x
    x = 1,320,369,549.92/42,016.32
  6. Step 6: Final answer
    x = 31,425.16

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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.