Home / 30,522.64-42,122.28-17,948.56

Finding the Fourth Proportional to 30,522.64, 42,122.28 and 17,948.56

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Solution

The fourth proportional to 30,522.64, 42,122.28 and 17,948.56 is: 24,769.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.64 : 42,122.28 = 17,948.56 : x
  2. Step 2: Convert to fraction form
    30,522.64/42,122.28 = 17,948.56/x
  3. Step 3: Cross multiply
    30,522.64x = 42,122.28 × 17,948.56
  4. Step 4: Simplify right side
    30,522.64x = 756,034,269.92
  5. Step 5: Solve for x
    x = 756,034,269.92/30,522.64
  6. Step 6: Final answer
    x = 24,769.62

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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.