Home / 25,451.10-35,122.91-15,378.17

Finding the Fourth Proportional to 25,451.10, 35,122.91 and 15,378.17

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Solution

The fourth proportional to 25,451.10, 35,122.91 and 15,378.17 is: 21,222.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.10 : 35,122.91 = 15,378.17 : x
  2. Step 2: Convert to fraction form
    25,451.10/35,122.91 = 15,378.17/x
  3. Step 3: Cross multiply
    25,451.10x = 35,122.91 × 15,378.17
  4. Step 4: Simplify right side
    25,451.10x = 540,125,828.37
  5. Step 5: Solve for x
    x = 540,125,828.37/25,451.10
  6. Step 6: Final answer
    x = 21,222.10

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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.