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Finding the Fourth Proportional to 25,364.80, 38,014.80 and 19,492.30

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Solution

The fourth proportional to 25,364.80, 38,014.80 and 19,492.30 is: 29,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,364.80 : 38,014.80 = 19,492.30 : x
  2. Step 2: Convert to fraction form
    25,364.80/38,014.80 = 19,492.30/x
  3. Step 3: Cross multiply
    25,364.80x = 38,014.80 × 19,492.30
  4. Step 4: Simplify right side
    25,364.80x = 740,995,886.04
  5. Step 5: Solve for x
    x = 740,995,886.04/25,364.80
  6. Step 6: Final answer
    x = 29,213.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.