Home / 30,101.55-45,154.49-10,379.82

Finding the Fourth Proportional to 30,101.55, 45,154.49 and 10,379.82

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Solution

The fourth proportional to 30,101.55, 45,154.49 and 10,379.82 is: 15,570.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.55 : 45,154.49 = 10,379.82 : x
  2. Step 2: Convert to fraction form
    30,101.55/45,154.49 = 10,379.82/x
  3. Step 3: Cross multiply
    30,101.55x = 45,154.49 × 10,379.82
  4. Step 4: Simplify right side
    30,101.55x = 468,695,384.16
  5. Step 5: Solve for x
    x = 468,695,384.16/30,101.55
  6. Step 6: Final answer
    x = 15,570.47

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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.