Home / 28,941.86-39,951.24-18,878.96

Finding the Fourth Proportional to 28,941.86, 39,951.24 and 18,878.96

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Solution

The fourth proportional to 28,941.86, 39,951.24 and 18,878.96 is: 26,060.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.86 : 39,951.24 = 18,878.96 : x
  2. Step 2: Convert to fraction form
    28,941.86/39,951.24 = 18,878.96/x
  3. Step 3: Cross multiply
    28,941.86x = 39,951.24 × 18,878.96
  4. Step 4: Simplify right side
    28,941.86x = 754,237,861.91
  5. Step 5: Solve for x
    x = 754,237,861.91/28,941.86
  6. Step 6: Final answer
    x = 26,060.45

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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.