Home / 28,207.65-38,925.20-16,274.84

Finding the Fourth Proportional to 28,207.65, 38,925.20 and 16,274.84

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Solution

The fourth proportional to 28,207.65, 38,925.20 and 16,274.84 is: 22,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.65 : 38,925.20 = 16,274.84 : x
  2. Step 2: Convert to fraction form
    28,207.65/38,925.20 = 16,274.84/x
  3. Step 3: Cross multiply
    28,207.65x = 38,925.20 × 16,274.84
  4. Step 4: Simplify right side
    28,207.65x = 633,501,125.97
  5. Step 5: Solve for x
    x = 633,501,125.97/28,207.65
  6. Step 6: Final answer
    x = 22,458.49

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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.