Home / 28,715.41-39,625.29-15,967.58

Finding the Fourth Proportional to 28,715.41, 39,625.29 and 15,967.58

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Solution

The fourth proportional to 28,715.41, 39,625.29 and 15,967.58 is: 22,034.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.41 : 39,625.29 = 15,967.58 : x
  2. Step 2: Convert to fraction form
    28,715.41/39,625.29 = 15,967.58/x
  3. Step 3: Cross multiply
    28,715.41x = 39,625.29 × 15,967.58
  4. Step 4: Simplify right side
    28,715.41x = 632,719,988.10
  5. Step 5: Solve for x
    x = 632,719,988.10/28,715.41
  6. Step 6: Final answer
    x = 22,034.16

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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.