Home / 42,486.26-63,729.45-12,904.29

Finding the Fourth Proportional to 42,486.26, 63,729.45 and 12,904.29

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Solution

The fourth proportional to 42,486.26, 63,729.45 and 12,904.29 is: 19,356.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,486.26 : 63,729.45 = 12,904.29 : x
  2. Step 2: Convert to fraction form
    42,486.26/63,729.45 = 12,904.29/x
  3. Step 3: Cross multiply
    42,486.26x = 63,729.45 × 12,904.29
  4. Step 4: Simplify right side
    42,486.26x = 822,383,304.34
  5. Step 5: Solve for x
    x = 822,383,304.34/42,486.26
  6. Step 6: Final answer
    x = 19,356.46

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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.