Home / 40,638.46-60,960.08-15,678.64

Finding the Fourth Proportional to 40,638.46, 60,960.08 and 15,678.64

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Solution

The fourth proportional to 40,638.46, 60,960.08 and 15,678.64 is: 23,518.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,638.46 : 60,960.08 = 15,678.64 : x
  2. Step 2: Convert to fraction form
    40,638.46/60,960.08 = 15,678.64/x
  3. Step 3: Cross multiply
    40,638.46x = 60,960.08 × 15,678.64
  4. Step 4: Simplify right side
    40,638.46x = 955,771,070.59
  5. Step 5: Solve for x
    x = 955,771,070.59/40,638.46
  6. Step 6: Final answer
    x = 23,518.88

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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.