Home / 28,894.50-39,874.86-16,319.34

Finding the Fourth Proportional to 28,894.50, 39,874.86 and 16,319.34

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Solution

The fourth proportional to 28,894.50, 39,874.86 and 16,319.34 is: 22,520.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.50 : 39,874.86 = 16,319.34 : x
  2. Step 2: Convert to fraction form
    28,894.50/39,874.86 = 16,319.34/x
  3. Step 3: Cross multiply
    28,894.50x = 39,874.86 × 16,319.34
  4. Step 4: Simplify right side
    28,894.50x = 650,731,397.79
  5. Step 5: Solve for x
    x = 650,731,397.79/28,894.50
  6. Step 6: Final answer
    x = 22,520.94

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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.