Home / 25,579.72-35,290.65-15,500.89

Finding the Fourth Proportional to 25,579.72, 35,290.65 and 15,500.89

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Solution

The fourth proportional to 25,579.72, 35,290.65 and 15,500.89 is: 21,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,579.72 : 35,290.65 = 15,500.89 : x
  2. Step 2: Convert to fraction form
    25,579.72/35,290.65 = 15,500.89/x
  3. Step 3: Cross multiply
    25,579.72x = 35,290.65 × 15,500.89
  4. Step 4: Simplify right side
    25,579.72x = 547,036,483.68
  5. Step 5: Solve for x
    x = 547,036,483.68/25,579.72
  6. Step 6: Final answer
    x = 21,385.55

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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.