Home / 28,382.86-39,168.13-16,445.94

Finding the Fourth Proportional to 28,382.86, 39,168.13 and 16,445.94

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Solution

The fourth proportional to 28,382.86, 39,168.13 and 16,445.94 is: 22,695.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,382.86 : 39,168.13 = 16,445.94 : x
  2. Step 2: Convert to fraction form
    28,382.86/39,168.13 = 16,445.94/x
  3. Step 3: Cross multiply
    28,382.86x = 39,168.13 × 16,445.94
  4. Step 4: Simplify right side
    28,382.86x = 644,156,715.89
  5. Step 5: Solve for x
    x = 644,156,715.89/28,382.86
  6. Step 6: Final answer
    x = 22,695.27

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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.