Home / 28,219.09-38,934.59-17,458.79

Finding the Fourth Proportional to 28,219.09, 38,934.59 and 17,458.79

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Solution

The fourth proportional to 28,219.09, 38,934.59 and 17,458.79 is: 24,088.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,219.09 : 38,934.59 = 17,458.79 : x
  2. Step 2: Convert to fraction form
    28,219.09/38,934.59 = 17,458.79/x
  3. Step 3: Cross multiply
    28,219.09x = 38,934.59 × 17,458.79
  4. Step 4: Simplify right side
    28,219.09x = 679,750,906.06
  5. Step 5: Solve for x
    x = 679,750,906.06/28,219.09
  6. Step 6: Final answer
    x = 24,088.34

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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.