Home / 19,428.80-26,787.84-14,385.92

Finding the Fourth Proportional to 19,428.80, 26,787.84 and 14,385.92

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Solution

The fourth proportional to 19,428.80, 26,787.84 and 14,385.92 is: 19,834.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.80 : 26,787.84 = 14,385.92 : x
  2. Step 2: Convert to fraction form
    19,428.80/26,787.84 = 14,385.92/x
  3. Step 3: Cross multiply
    19,428.80x = 26,787.84 × 14,385.92
  4. Step 4: Simplify right side
    19,428.80x = 385,367,723.21
  5. Step 5: Solve for x
    x = 385,367,723.21/19,428.80
  6. Step 6: Final answer
    x = 19,834.87

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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.