Home / 25,492.20-38,162.70-18,947.40

Finding the Fourth Proportional to 25,492.20, 38,162.70 and 18,947.40

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Solution

The fourth proportional to 25,492.20, 38,162.70 and 18,947.40 is: 28,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,492.20 : 38,162.70 = 18,947.40 : x
  2. Step 2: Convert to fraction form
    25,492.20/38,162.70 = 18,947.40/x
  3. Step 3: Cross multiply
    25,492.20x = 38,162.70 × 18,947.40
  4. Step 4: Simplify right side
    25,492.20x = 723,083,941.98
  5. Step 5: Solve for x
    x = 723,083,941.98/25,492.20
  6. Step 6: Final answer
    x = 28,364.91

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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.