Home / 25,767.17-38,826.29-21,189.71

Finding the Fourth Proportional to 25,767.17, 38,826.29 and 21,189.71

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Solution

The fourth proportional to 25,767.17, 38,826.29 and 21,189.71 is: 31,928.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,767.17 : 38,826.29 = 21,189.71 : x
  2. Step 2: Convert to fraction form
    25,767.17/38,826.29 = 21,189.71/x
  3. Step 3: Cross multiply
    25,767.17x = 38,826.29 × 21,189.71
  4. Step 4: Simplify right side
    25,767.17x = 822,718,045.01
  5. Step 5: Solve for x
    x = 822,718,045.01/25,767.17
  6. Step 6: Final answer
    x = 31,928.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.