Home / 19,320.08-26,660.56-10,820.80

Finding the Fourth Proportional to 19,320.08, 26,660.56 and 10,820.80

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Solution

The fourth proportional to 19,320.08, 26,660.56 and 10,820.80 is: 14,932.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.08 : 26,660.56 = 10,820.80 : x
  2. Step 2: Convert to fraction form
    19,320.08/26,660.56 = 10,820.80/x
  3. Step 3: Cross multiply
    19,320.08x = 26,660.56 × 10,820.80
  4. Step 4: Simplify right side
    19,320.08x = 288,488,587.65
  5. Step 5: Solve for x
    x = 288,488,587.65/19,320.08
  6. Step 6: Final answer
    x = 14,932.06

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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.