Home / 30,302.50-41,820.70-17,737.78

Finding the Fourth Proportional to 30,302.50, 41,820.70 and 17,737.78

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Solution

The fourth proportional to 30,302.50, 41,820.70 and 17,737.78 is: 24,480.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,302.50 : 41,820.70 = 17,737.78 : x
  2. Step 2: Convert to fraction form
    30,302.50/41,820.70 = 17,737.78/x
  3. Step 3: Cross multiply
    30,302.50x = 41,820.70 × 17,737.78
  4. Step 4: Simplify right side
    30,302.50x = 741,806,376.05
  5. Step 5: Solve for x
    x = 741,806,376.05/30,302.50
  6. Step 6: Final answer
    x = 24,480.04

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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.