Home / 28,279.72-39,045.54-17,674.12

Finding the Fourth Proportional to 28,279.72, 39,045.54 and 17,674.12

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Solution

The fourth proportional to 28,279.72, 39,045.54 and 17,674.12 is: 24,402.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,279.72 : 39,045.54 = 17,674.12 : x
  2. Step 2: Convert to fraction form
    28,279.72/39,045.54 = 17,674.12/x
  3. Step 3: Cross multiply
    28,279.72x = 39,045.54 × 17,674.12
  4. Step 4: Simplify right side
    28,279.72x = 690,095,559.42
  5. Step 5: Solve for x
    x = 690,095,559.42/28,279.72
  6. Step 6: Final answer
    x = 24,402.49

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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.