Home / 20,846.06-28,767.57-11,415.20

Finding the Fourth Proportional to 20,846.06, 28,767.57 and 11,415.20

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Solution

The fourth proportional to 20,846.06, 28,767.57 and 11,415.20 is: 15,752.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,846.06 : 28,767.57 = 11,415.20 : x
  2. Step 2: Convert to fraction form
    20,846.06/28,767.57 = 11,415.20/x
  3. Step 3: Cross multiply
    20,846.06x = 28,767.57 × 11,415.20
  4. Step 4: Simplify right side
    20,846.06x = 328,387,565.06
  5. Step 5: Solve for x
    x = 328,387,565.06/20,846.06
  6. Step 6: Final answer
    x = 15,752.98

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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.