Home / 38,009.20-57,013.80-10,307.20

Finding the Fourth Proportional to 38,009.20, 57,013.80 and 10,307.20

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Solution

The fourth proportional to 38,009.20, 57,013.80 and 10,307.20 is: 15,460.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,009.20 : 57,013.80 = 10,307.20 : x
  2. Step 2: Convert to fraction form
    38,009.20/57,013.80 = 10,307.20/x
  3. Step 3: Cross multiply
    38,009.20x = 57,013.80 × 10,307.20
  4. Step 4: Simplify right side
    38,009.20x = 587,652,639.36
  5. Step 5: Solve for x
    x = 587,652,639.36/38,009.20
  6. Step 6: Final answer
    x = 15,460.80

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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.