Home / 42,013.74-62,999.16-13,923.78

Finding the Fourth Proportional to 42,013.74, 62,999.16 and 13,923.78

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Solution

The fourth proportional to 42,013.74, 62,999.16 and 13,923.78 is: 20,878.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,013.74 : 62,999.16 = 13,923.78 : x
  2. Step 2: Convert to fraction form
    42,013.74/62,999.16 = 13,923.78/x
  3. Step 3: Cross multiply
    42,013.74x = 62,999.16 × 13,923.78
  4. Step 4: Simplify right side
    42,013.74x = 877,186,444.02
  5. Step 5: Solve for x
    x = 877,186,444.02/42,013.74
  6. Step 6: Final answer
    x = 20,878.56

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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.