Home / 25,680-35,441.28-14,502.72

Finding the Fourth Proportional to 25,680, 35,441.28 and 14,502.72

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Solution

The fourth proportional to 25,680, 35,441.28 and 14,502.72 is: 20,015.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,680 : 35,441.28 = 14,502.72 : x
  2. Step 2: Convert to fraction form
    25,680/35,441.28 = 14,502.72/x
  3. Step 3: Cross multiply
    25,680x = 35,441.28 × 14,502.72
  4. Step 4: Simplify right side
    25,680x = 513,994,960.28
  5. Step 5: Solve for x
    x = 513,994,960.28/25,680
  6. Step 6: Final answer
    x = 20,015.38

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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.