Home / 40,307.64-55,620.31-22,399.76

Finding the Fourth Proportional to 40,307.64, 55,620.31 and 22,399.76

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Solution

The fourth proportional to 40,307.64, 55,620.31 and 22,399.76 is: 30,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,307.64 : 55,620.31 = 22,399.76 : x
  2. Step 2: Convert to fraction form
    40,307.64/55,620.31 = 22,399.76/x
  3. Step 3: Cross multiply
    40,307.64x = 55,620.31 × 22,399.76
  4. Step 4: Simplify right side
    40,307.64x = 1,245,881,595.13
  5. Step 5: Solve for x
    x = 1,245,881,595.13/40,307.64
  6. Step 6: Final answer
    x = 30,909.32

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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.