Home / 30,140.55-45,200.43-12,366.19

Finding the Fourth Proportional to 30,140.55, 45,200.43 and 12,366.19

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Solution

The fourth proportional to 30,140.55, 45,200.43 and 12,366.19 is: 18,545.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.55 : 45,200.43 = 12,366.19 : x
  2. Step 2: Convert to fraction form
    30,140.55/45,200.43 = 12,366.19/x
  3. Step 3: Cross multiply
    30,140.55x = 45,200.43 × 12,366.19
  4. Step 4: Simplify right side
    30,140.55x = 558,957,105.46
  5. Step 5: Solve for x
    x = 558,957,105.46/30,140.55
  6. Step 6: Final answer
    x = 18,545.02

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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.