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Finding the Fourth Proportional to 40,312.69, 60,469.03 and 15,688.69

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Solution

The fourth proportional to 40,312.69, 60,469.03 and 15,688.69 is: 23,533.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,312.69 : 60,469.03 = 15,688.69 : x
  2. Step 2: Convert to fraction form
    40,312.69/60,469.03 = 15,688.69/x
  3. Step 3: Cross multiply
    40,312.69x = 60,469.03 × 15,688.69
  4. Step 4: Simplify right side
    40,312.69x = 948,679,734.71
  5. Step 5: Solve for x
    x = 948,679,734.71/40,312.69
  6. Step 6: Final answer
    x = 23,533.03

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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.