Home / 38,130.75-57,200.09-10,428.75

Finding the Fourth Proportional to 38,130.75, 57,200.09 and 10,428.75

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Solution

The fourth proportional to 38,130.75, 57,200.09 and 10,428.75 is: 15,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,130.75 : 57,200.09 = 10,428.75 : x
  2. Step 2: Convert to fraction form
    38,130.75/57,200.09 = 10,428.75/x
  3. Step 3: Cross multiply
    38,130.75x = 57,200.09 × 10,428.75
  4. Step 4: Simplify right side
    38,130.75x = 596,525,386.44
  5. Step 5: Solve for x
    x = 596,525,386.44/38,130.75
  6. Step 6: Final answer
    x = 15,644.21

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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.