Home / 28,513.61-39,339.03-17,178.82

Finding the Fourth Proportional to 28,513.61, 39,339.03 and 17,178.82

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Solution

The fourth proportional to 28,513.61, 39,339.03 and 17,178.82 is: 23,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,513.61 : 39,339.03 = 17,178.82 : x
  2. Step 2: Convert to fraction form
    28,513.61/39,339.03 = 17,178.82/x
  3. Step 3: Cross multiply
    28,513.61x = 39,339.03 × 17,178.82
  4. Step 4: Simplify right side
    28,513.61x = 675,798,115.34
  5. Step 5: Solve for x
    x = 675,798,115.34/28,513.61
  6. Step 6: Final answer
    x = 23,700.90

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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.