Home / 20,195.12-27,870.57-13,476.47

Finding the Fourth Proportional to 20,195.12, 27,870.57 and 13,476.47

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Solution

The fourth proportional to 20,195.12, 27,870.57 and 13,476.47 is: 18,598.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.12 : 27,870.57 = 13,476.47 : x
  2. Step 2: Convert to fraction form
    20,195.12/27,870.57 = 13,476.47/x
  3. Step 3: Cross multiply
    20,195.12x = 27,870.57 × 13,476.47
  4. Step 4: Simplify right side
    20,195.12x = 375,596,900.49
  5. Step 5: Solve for x
    x = 375,596,900.49/20,195.12
  6. Step 6: Final answer
    x = 18,598.40

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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.