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Finding the Fourth Proportional to 40,007.64, 60,014.88 and 10,425.48

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Solution

The fourth proportional to 40,007.64, 60,014.88 and 10,425.48 is: 15,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,007.64 : 60,014.88 = 10,425.48 : x
  2. Step 2: Convert to fraction form
    40,007.64/60,014.88 = 10,425.48/x
  3. Step 3: Cross multiply
    40,007.64x = 60,014.88 × 10,425.48
  4. Step 4: Simplify right side
    40,007.64x = 625,683,931.14
  5. Step 5: Solve for x
    x = 625,683,931.14/40,007.64
  6. Step 6: Final answer
    x = 15,639.11

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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.