Home / 28,590.79-39,455.30-17,412.79

Finding the Fourth Proportional to 28,590.79, 39,455.30 and 17,412.79

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Solution

The fourth proportional to 28,590.79, 39,455.30 and 17,412.79 is: 24,029.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.79 : 39,455.30 = 17,412.79 : x
  2. Step 2: Convert to fraction form
    28,590.79/39,455.30 = 17,412.79/x
  3. Step 3: Cross multiply
    28,590.79x = 39,455.30 × 17,412.79
  4. Step 4: Simplify right side
    28,590.79x = 687,026,568.95
  5. Step 5: Solve for x
    x = 687,026,568.95/28,590.79
  6. Step 6: Final answer
    x = 24,029.65

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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.