Home / 28,492.88-39,309.72-17,878.64

Finding the Fourth Proportional to 28,492.88, 39,309.72 and 17,878.64

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Solution

The fourth proportional to 28,492.88, 39,309.72 and 17,878.64 is: 24,665.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.88 : 39,309.72 = 17,878.64 : x
  2. Step 2: Convert to fraction form
    28,492.88/39,309.72 = 17,878.64/x
  3. Step 3: Cross multiply
    28,492.88x = 39,309.72 × 17,878.64
  4. Step 4: Simplify right side
    28,492.88x = 702,804,332.38
  5. Step 5: Solve for x
    x = 702,804,332.38/28,492.88
  6. Step 6: Final answer
    x = 24,665.96

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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.