Home / 55,346.20-83,019.30-13,793.20

Finding the Fourth Proportional to 55,346.20, 83,019.30 and 13,793.20

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Solution

The fourth proportional to 55,346.20, 83,019.30 and 13,793.20 is: 20,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,346.20 : 83,019.30 = 13,793.20 : x
  2. Step 2: Convert to fraction form
    55,346.20/83,019.30 = 13,793.20/x
  3. Step 3: Cross multiply
    55,346.20x = 83,019.30 × 13,793.20
  4. Step 4: Simplify right side
    55,346.20x = 1,145,101,808.76
  5. Step 5: Solve for x
    x = 1,145,101,808.76/55,346.20
  6. Step 6: Final answer
    x = 20,689.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.