Home / 28,468.26-42,728.64-14,438.13

Finding the Fourth Proportional to 28,468.26, 42,728.64 and 14,438.13

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Solution

The fourth proportional to 28,468.26, 42,728.64 and 14,438.13 is: 21,670.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,468.26 : 42,728.64 = 14,438.13 : x
  2. Step 2: Convert to fraction form
    28,468.26/42,728.64 = 14,438.13/x
  3. Step 3: Cross multiply
    28,468.26x = 42,728.64 × 14,438.13
  4. Step 4: Simplify right side
    28,468.26x = 616,921,659.04
  5. Step 5: Solve for x
    x = 616,921,659.04/28,468.26
  6. Step 6: Final answer
    x = 21,670.51

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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.