Home / 34,728.40-47,925.42-18,812.86

Finding the Fourth Proportional to 34,728.40, 47,925.42 and 18,812.86

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Solution

The fourth proportional to 34,728.40, 47,925.42 and 18,812.86 is: 25,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,728.40 : 47,925.42 = 18,812.86 : x
  2. Step 2: Convert to fraction form
    34,728.40/47,925.42 = 18,812.86/x
  3. Step 3: Cross multiply
    34,728.40x = 47,925.42 × 18,812.86
  4. Step 4: Simplify right side
    34,728.40x = 901,614,132.36
  5. Step 5: Solve for x
    x = 901,614,132.36/34,728.40
  6. Step 6: Final answer
    x = 25,961.87

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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.