Home / 42,728.28-64,022.13-14,632.84

Finding the Fourth Proportional to 42,728.28, 64,022.13 and 14,632.84

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Solution

The fourth proportional to 42,728.28, 64,022.13 and 14,632.84 is: 21,925.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,728.28 : 64,022.13 = 14,632.84 : x
  2. Step 2: Convert to fraction form
    42,728.28/64,022.13 = 14,632.84/x
  3. Step 3: Cross multiply
    42,728.28x = 64,022.13 × 14,632.84
  4. Step 4: Simplify right side
    42,728.28x = 936,825,584.75
  5. Step 5: Solve for x
    x = 936,825,584.75/42,728.28
  6. Step 6: Final answer
    x = 21,925.19

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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.