Home / 29,938.40-41,315.28-16,510.20

Finding the Fourth Proportional to 29,938.40, 41,315.28 and 16,510.20

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Solution

The fourth proportional to 29,938.40, 41,315.28 and 16,510.20 is: 22,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,938.40 : 41,315.28 = 16,510.20 : x
  2. Step 2: Convert to fraction form
    29,938.40/41,315.28 = 16,510.20/x
  3. Step 3: Cross multiply
    29,938.40x = 41,315.28 × 16,510.20
  4. Step 4: Simplify right side
    29,938.40x = 682,123,535.86
  5. Step 5: Solve for x
    x = 682,123,535.86/29,938.40
  6. Step 6: Final answer
    x = 22,784.23

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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.