Home / 20,723.16-28,589.43-14,439.18

Finding the Fourth Proportional to 20,723.16, 28,589.43 and 14,439.18

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Solution

The fourth proportional to 20,723.16, 28,589.43 and 14,439.18 is: 19,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.16 : 28,589.43 = 14,439.18 : x
  2. Step 2: Convert to fraction form
    20,723.16/28,589.43 = 14,439.18/x
  3. Step 3: Cross multiply
    20,723.16x = 28,589.43 × 14,439.18
  4. Step 4: Simplify right side
    20,723.16x = 412,807,925.87
  5. Step 5: Solve for x
    x = 412,807,925.87/20,723.16
  6. Step 6: Final answer
    x = 19,920.12

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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.