Home / 30,358.78-45,543.66-13,726.65

Finding the Fourth Proportional to 30,358.78, 45,543.66 and 13,726.65

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Solution

The fourth proportional to 30,358.78, 45,543.66 and 13,726.65 is: 20,592.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,358.78 : 45,543.66 = 13,726.65 : x
  2. Step 2: Convert to fraction form
    30,358.78/45,543.66 = 13,726.65/x
  3. Step 3: Cross multiply
    30,358.78x = 45,543.66 × 13,726.65
  4. Step 4: Simplify right side
    30,358.78x = 625,161,880.54
  5. Step 5: Solve for x
    x = 625,161,880.54/30,358.78
  6. Step 6: Final answer
    x = 20,592.46

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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.