Home / 30,233.40-45,371.70-12,715.80

Finding the Fourth Proportional to 30,233.40, 45,371.70 and 12,715.80

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Solution

The fourth proportional to 30,233.40, 45,371.70 and 12,715.80 is: 19,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,233.40 : 45,371.70 = 12,715.80 : x
  2. Step 2: Convert to fraction form
    30,233.40/45,371.70 = 12,715.80/x
  3. Step 3: Cross multiply
    30,233.40x = 45,371.70 × 12,715.80
  4. Step 4: Simplify right side
    30,233.40x = 576,937,462.86
  5. Step 5: Solve for x
    x = 576,937,462.86/30,233.40
  6. Step 6: Final answer
    x = 19,082.78

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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.