Home / 25,388.67-35,010.45-21,074.82

Finding the Fourth Proportional to 25,388.67, 35,010.45 and 21,074.82

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Solution

The fourth proportional to 25,388.67, 35,010.45 and 21,074.82 is: 29,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,388.67 : 35,010.45 = 21,074.82 : x
  2. Step 2: Convert to fraction form
    25,388.67/35,010.45 = 21,074.82/x
  3. Step 3: Cross multiply
    25,388.67x = 35,010.45 × 21,074.82
  4. Step 4: Simplify right side
    25,388.67x = 737,838,931.87
  5. Step 5: Solve for x
    x = 737,838,931.87/25,388.67
  6. Step 6: Final answer
    x = 29,061.74

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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.