Home / 19,877.70-27,430.90-10,926.04

Finding the Fourth Proportional to 19,877.70, 27,430.90 and 10,926.04

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Solution

The fourth proportional to 19,877.70, 27,430.90 and 10,926.04 is: 15,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,877.70 : 27,430.90 = 10,926.04 : x
  2. Step 2: Convert to fraction form
    19,877.70/27,430.90 = 10,926.04/x
  3. Step 3: Cross multiply
    19,877.70x = 27,430.90 × 10,926.04
  4. Step 4: Simplify right side
    19,877.70x = 299,711,127.64
  5. Step 5: Solve for x
    x = 299,711,127.64/19,877.70
  6. Step 6: Final answer
    x = 15,077.75

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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.