Home / 42,422.40-63,633.60-14,720.40

Finding the Fourth Proportional to 42,422.40, 63,633.60 and 14,720.40

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Solution

The fourth proportional to 42,422.40, 63,633.60 and 14,720.40 is: 22,080.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,422.40 : 63,633.60 = 14,720.40 : x
  2. Step 2: Convert to fraction form
    42,422.40/63,633.60 = 14,720.40/x
  3. Step 3: Cross multiply
    42,422.40x = 63,633.60 × 14,720.40
  4. Step 4: Simplify right side
    42,422.40x = 936,712,045.44
  5. Step 5: Solve for x
    x = 936,712,045.44/42,422.40
  6. Step 6: Final answer
    x = 22,080.60

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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.