Home / 28,535.94-39,381.78-16,440.17

Finding the Fourth Proportional to 28,535.94, 39,381.78 and 16,440.17

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Solution

The fourth proportional to 28,535.94, 39,381.78 and 16,440.17 is: 22,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.94 : 39,381.78 = 16,440.17 : x
  2. Step 2: Convert to fraction form
    28,535.94/39,381.78 = 16,440.17/x
  3. Step 3: Cross multiply
    28,535.94x = 39,381.78 × 16,440.17
  4. Step 4: Simplify right side
    28,535.94x = 647,442,961.19
  5. Step 5: Solve for x
    x = 647,442,961.19/28,535.94
  6. Step 6: Final answer
    x = 22,688.69

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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.