Home / 40,386.15-60,591.57-20,678.64

Finding the Fourth Proportional to 40,386.15, 60,591.57 and 20,678.64

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Solution

The fourth proportional to 40,386.15, 60,591.57 and 20,678.64 is: 31,024.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,386.15 : 60,591.57 = 20,678.64 : x
  2. Step 2: Convert to fraction form
    40,386.15/60,591.57 = 20,678.64/x
  3. Step 3: Cross multiply
    40,386.15x = 60,591.57 × 20,678.64
  4. Step 4: Simplify right side
    40,386.15x = 1,252,951,263.06
  5. Step 5: Solve for x
    x = 1,252,951,263.06/40,386.15
  6. Step 6: Final answer
    x = 31,024.28

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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.