Home / 30,148.80-45,227.28-12,614.52

Finding the Fourth Proportional to 30,148.80, 45,227.28 and 12,614.52

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Solution

The fourth proportional to 30,148.80, 45,227.28 and 12,614.52 is: 18,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,148.80 : 45,227.28 = 12,614.52 : x
  2. Step 2: Convert to fraction form
    30,148.80/45,227.28 = 12,614.52/x
  3. Step 3: Cross multiply
    30,148.80x = 45,227.28 × 12,614.52
  4. Step 4: Simplify right side
    30,148.80x = 570,520,428.11
  5. Step 5: Solve for x
    x = 570,520,428.11/30,148.80
  6. Step 6: Final answer
    x = 18,923.49

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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.