Home / 30,508.50-42,089.28-19,174.34

Finding the Fourth Proportional to 30,508.50, 42,089.28 and 19,174.34

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Solution

The fourth proportional to 30,508.50, 42,089.28 and 19,174.34 is: 26,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,508.50 : 42,089.28 = 19,174.34 : x
  2. Step 2: Convert to fraction form
    30,508.50/42,089.28 = 19,174.34/x
  3. Step 3: Cross multiply
    30,508.50x = 42,089.28 × 19,174.34
  4. Step 4: Simplify right side
    30,508.50x = 807,034,165.08
  5. Step 5: Solve for x
    x = 807,034,165.08/30,508.50
  6. Step 6: Final answer
    x = 26,452.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.