Home / 20,701.84-30,902.60-19,159.96

Finding the Fourth Proportional to 20,701.84, 30,902.60 and 19,159.96

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Solution

The fourth proportional to 20,701.84, 30,902.60 and 19,159.96 is: 28,600.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.84 : 30,902.60 = 19,159.96 : x
  2. Step 2: Convert to fraction form
    20,701.84/30,902.60 = 19,159.96/x
  3. Step 3: Cross multiply
    20,701.84x = 30,902.60 × 19,159.96
  4. Step 4: Simplify right side
    20,701.84x = 592,092,579.90
  5. Step 5: Solve for x
    x = 592,092,579.90/20,701.84
  6. Step 6: Final answer
    x = 28,600.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.