Home / 38,130.28-57,194.61-10,428.28

Finding the Fourth Proportional to 38,130.28, 57,194.61 and 10,428.28

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Solution

The fourth proportional to 38,130.28, 57,194.61 and 10,428.28 is: 15,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,130.28 : 57,194.61 = 10,428.28 : x
  2. Step 2: Convert to fraction form
    38,130.28/57,194.61 = 10,428.28/x
  3. Step 3: Cross multiply
    38,130.28x = 57,194.61 × 10,428.28
  4. Step 4: Simplify right side
    38,130.28x = 596,441,407.57
  5. Step 5: Solve for x
    x = 596,441,407.57/38,130.28
  6. Step 6: Final answer
    x = 15,642.20

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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.