Home / 38,136.80-57,199.08-10,428.32

Finding the Fourth Proportional to 38,136.80, 57,199.08 and 10,428.32

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Solution

The fourth proportional to 38,136.80, 57,199.08 and 10,428.32 is: 15,640.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.80 : 57,199.08 = 10,428.32 : x
  2. Step 2: Convert to fraction form
    38,136.80/57,199.08 = 10,428.32/x
  3. Step 3: Cross multiply
    38,136.80x = 57,199.08 × 10,428.32
  4. Step 4: Simplify right side
    38,136.80x = 596,490,309.95
  5. Step 5: Solve for x
    x = 596,490,309.95/38,136.80
  6. Step 6: Final answer
    x = 15,640.81

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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.