Home / 30,643.67-42,251.46-22,132.19

Finding the Fourth Proportional to 30,643.67, 42,251.46 and 22,132.19

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Solution

The fourth proportional to 30,643.67, 42,251.46 and 22,132.19 is: 30,515.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,643.67 : 42,251.46 = 22,132.19 : x
  2. Step 2: Convert to fraction form
    30,643.67/42,251.46 = 22,132.19/x
  3. Step 3: Cross multiply
    30,643.67x = 42,251.46 × 22,132.19
  4. Step 4: Simplify right side
    30,643.67x = 935,117,129.24
  5. Step 5: Solve for x
    x = 935,117,129.24/30,643.67
  6. Step 6: Final answer
    x = 30,515.84

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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.