Home / 28,170.95-38,834.48-21,444.87

Finding the Fourth Proportional to 28,170.95, 38,834.48 and 21,444.87

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Solution

The fourth proportional to 28,170.95, 38,834.48 and 21,444.87 is: 29,562.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,170.95 : 38,834.48 = 21,444.87 : x
  2. Step 2: Convert to fraction form
    28,170.95/38,834.48 = 21,444.87/x
  3. Step 3: Cross multiply
    28,170.95x = 38,834.48 × 21,444.87
  4. Step 4: Simplify right side
    28,170.95x = 832,800,267.89
  5. Step 5: Solve for x
    x = 832,800,267.89/28,170.95
  6. Step 6: Final answer
    x = 29,562.38

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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.