Home / 28,395.68-42,513.33-15,038.38

Finding the Fourth Proportional to 28,395.68, 42,513.33 and 15,038.38

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Solution

The fourth proportional to 28,395.68, 42,513.33 and 15,038.38 is: 22,515.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,395.68 : 42,513.33 = 15,038.38 : x
  2. Step 2: Convert to fraction form
    28,395.68/42,513.33 = 15,038.38/x
  3. Step 3: Cross multiply
    28,395.68x = 42,513.33 × 15,038.38
  4. Step 4: Simplify right side
    28,395.68x = 639,331,399.04
  5. Step 5: Solve for x
    x = 639,331,399.04/28,395.68
  6. Step 6: Final answer
    x = 22,515.09

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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.