Home / 28,294.26-39,041.91-15,719.01

Finding the Fourth Proportional to 28,294.26, 39,041.91 and 15,719.01

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Solution

The fourth proportional to 28,294.26, 39,041.91 and 15,719.01 is: 21,689.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.26 : 39,041.91 = 15,719.01 : x
  2. Step 2: Convert to fraction form
    28,294.26/39,041.91 = 15,719.01/x
  3. Step 3: Cross multiply
    28,294.26x = 39,041.91 × 15,719.01
  4. Step 4: Simplify right side
    28,294.26x = 613,700,173.71
  5. Step 5: Solve for x
    x = 613,700,173.71/28,294.26
  6. Step 6: Final answer
    x = 21,689.92

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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.