Home / 20,041.80-27,655.20-11,088.06

Finding the Fourth Proportional to 20,041.80, 27,655.20 and 11,088.06

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Solution

The fourth proportional to 20,041.80, 27,655.20 and 11,088.06 is: 15,300.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,041.80 : 27,655.20 = 11,088.06 : x
  2. Step 2: Convert to fraction form
    20,041.80/27,655.20 = 11,088.06/x
  3. Step 3: Cross multiply
    20,041.80x = 27,655.20 × 11,088.06
  4. Step 4: Simplify right side
    20,041.80x = 306,642,516.91
  5. Step 5: Solve for x
    x = 306,642,516.91/20,041.80
  6. Step 6: Final answer
    x = 15,300.15

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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.