Home / 40,787.69-56,329.79-28,073.70

Finding the Fourth Proportional to 40,787.69, 56,329.79 and 28,073.70

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Solution

The fourth proportional to 40,787.69, 56,329.79 and 28,073.70 is: 38,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,787.69 : 56,329.79 = 28,073.70 : x
  2. Step 2: Convert to fraction form
    40,787.69/56,329.79 = 28,073.70/x
  3. Step 3: Cross multiply
    40,787.69x = 56,329.79 × 28,073.70
  4. Step 4: Simplify right side
    40,787.69x = 1,581,385,485.15
  5. Step 5: Solve for x
    x = 1,581,385,485.15/40,787.69
  6. Step 6: Final answer
    x = 38,771.15

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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.