Home / 30,079.38-45,117.15-10,358.34

Finding the Fourth Proportional to 30,079.38, 45,117.15 and 10,358.34

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Solution

The fourth proportional to 30,079.38, 45,117.15 and 10,358.34 is: 15,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.38 : 45,117.15 = 10,358.34 : x
  2. Step 2: Convert to fraction form
    30,079.38/45,117.15 = 10,358.34/x
  3. Step 3: Cross multiply
    30,079.38x = 45,117.15 × 10,358.34
  4. Step 4: Simplify right side
    30,079.38x = 467,338,779.53
  5. Step 5: Solve for x
    x = 467,338,779.53/30,079.38
  6. Step 6: Final answer
    x = 15,536.85

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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.