Home / 19,320.88-26,660.59-10,821.82

Finding the Fourth Proportional to 19,320.88, 26,660.59 and 10,821.82

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Solution

The fourth proportional to 19,320.88, 26,660.59 and 10,821.82 is: 14,932.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.88 : 26,660.59 = 10,821.82 : x
  2. Step 2: Convert to fraction form
    19,320.88/26,660.59 = 10,821.82/x
  3. Step 3: Cross multiply
    19,320.88x = 26,660.59 × 10,821.82
  4. Step 4: Simplify right side
    19,320.88x = 288,516,106.07
  5. Step 5: Solve for x
    x = 288,516,106.07/19,320.88
  6. Step 6: Final answer
    x = 14,932.87

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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.