Home / 28,371.38-39,152.50-15,799.10

Finding the Fourth Proportional to 28,371.38, 39,152.50 and 15,799.10

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Solution

The fourth proportional to 28,371.38, 39,152.50 and 15,799.10 is: 21,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,371.38 : 39,152.50 = 15,799.10 : x
  2. Step 2: Convert to fraction form
    28,371.38/39,152.50 = 15,799.10/x
  3. Step 3: Cross multiply
    28,371.38x = 39,152.50 × 15,799.10
  4. Step 4: Simplify right side
    28,371.38x = 618,574,027.49
  5. Step 5: Solve for x
    x = 618,574,027.49/28,371.38
  6. Step 6: Final answer
    x = 21,802.75

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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.