Home / 30,452.28-42,021.45-17,021.76

Finding the Fourth Proportional to 30,452.28, 42,021.45 and 17,021.76

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Solution

The fourth proportional to 30,452.28, 42,021.45 and 17,021.76 is: 23,488.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,452.28 : 42,021.45 = 17,021.76 : x
  2. Step 2: Convert to fraction form
    30,452.28/42,021.45 = 17,021.76/x
  3. Step 3: Cross multiply
    30,452.28x = 42,021.45 × 17,021.76
  4. Step 4: Simplify right side
    30,452.28x = 715,279,036.75
  5. Step 5: Solve for x
    x = 715,279,036.75/30,452.28
  6. Step 6: Final answer
    x = 23,488.52

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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.