Home / 40,417.20-55,779.84-22,515.12

Finding the Fourth Proportional to 40,417.20, 55,779.84 and 22,515.12

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Solution

The fourth proportional to 40,417.20, 55,779.84 and 22,515.12 is: 31,073.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,417.20 : 55,779.84 = 22,515.12 : x
  2. Step 2: Convert to fraction form
    40,417.20/55,779.84 = 22,515.12/x
  3. Step 3: Cross multiply
    40,417.20x = 55,779.84 × 22,515.12
  4. Step 4: Simplify right side
    40,417.20x = 1,255,889,791.18
  5. Step 5: Solve for x
    x = 1,255,889,791.18/40,417.20
  6. Step 6: Final answer
    x = 31,073.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.