Home / 25,574.17-35,278.21-21,288.86

Finding the Fourth Proportional to 25,574.17, 35,278.21 and 21,288.86

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Solution

The fourth proportional to 25,574.17, 35,278.21 and 21,288.86 is: 29,366.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,574.17 : 35,278.21 = 21,288.86 : x
  2. Step 2: Convert to fraction form
    25,574.17/35,278.21 = 21,288.86/x
  3. Step 3: Cross multiply
    25,574.17x = 35,278.21 × 21,288.86
  4. Step 4: Simplify right side
    25,574.17x = 751,032,873.74
  5. Step 5: Solve for x
    x = 751,032,873.74/25,574.17
  6. Step 6: Final answer
    x = 29,366.85

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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.