Home / 42,610.40-63,915.60-11,448.80

Finding the Fourth Proportional to 42,610.40, 63,915.60 and 11,448.80

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Solution

The fourth proportional to 42,610.40, 63,915.60 and 11,448.80 is: 17,173.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,610.40 : 63,915.60 = 11,448.80 : x
  2. Step 2: Convert to fraction form
    42,610.40/63,915.60 = 11,448.80/x
  3. Step 3: Cross multiply
    42,610.40x = 63,915.60 × 11,448.80
  4. Step 4: Simplify right side
    42,610.40x = 731,756,921.28
  5. Step 5: Solve for x
    x = 731,756,921.28/42,610.40
  6. Step 6: Final answer
    x = 17,173.20

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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.