Home / 27,870.42-38,492.88-18,902.34

Finding the Fourth Proportional to 27,870.42, 38,492.88 and 18,902.34

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Solution

The fourth proportional to 27,870.42, 38,492.88 and 18,902.34 is: 26,106.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,870.42 : 38,492.88 = 18,902.34 : x
  2. Step 2: Convert to fraction form
    27,870.42/38,492.88 = 18,902.34/x
  3. Step 3: Cross multiply
    27,870.42x = 38,492.88 × 18,902.34
  4. Step 4: Simplify right side
    27,870.42x = 727,605,505.34
  5. Step 5: Solve for x
    x = 727,605,505.34/27,870.42
  6. Step 6: Final answer
    x = 26,106.73

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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.