Home / 40,420.92-55,779.48-22,515.36

Finding the Fourth Proportional to 40,420.92, 55,779.48 and 22,515.36

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Solution

The fourth proportional to 40,420.92, 55,779.48 and 22,515.36 is: 31,070.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,420.92 : 55,779.48 = 22,515.36 : x
  2. Step 2: Convert to fraction form
    40,420.92/55,779.48 = 22,515.36/x
  3. Step 3: Cross multiply
    40,420.92x = 55,779.48 × 22,515.36
  4. Step 4: Simplify right side
    40,420.92x = 1,255,895,072.81
  5. Step 5: Solve for x
    x = 1,255,895,072.81/40,420.92
  6. Step 6: Final answer
    x = 31,070.42

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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.