Home / 40,345.16-55,675.52-22,439.78

Finding the Fourth Proportional to 40,345.16, 55,675.52 and 22,439.78

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Solution

The fourth proportional to 40,345.16, 55,675.52 and 22,439.78 is: 30,966.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,345.16 : 55,675.52 = 22,439.78 : x
  2. Step 2: Convert to fraction form
    40,345.16/55,675.52 = 22,439.78/x
  3. Step 3: Cross multiply
    40,345.16x = 55,675.52 × 22,439.78
  4. Step 4: Simplify right side
    40,345.16x = 1,249,346,029.61
  5. Step 5: Solve for x
    x = 1,249,346,029.61/40,345.16
  6. Step 6: Final answer
    x = 30,966.45

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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.