Home / 25,521.44-35,220-15,449.76

Finding the Fourth Proportional to 25,521.44, 35,220 and 15,449.76

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Solution

The fourth proportional to 25,521.44, 35,220 and 15,449.76 is: 21,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,521.44 : 35,220 = 15,449.76 : x
  2. Step 2: Convert to fraction form
    25,521.44/35,220 = 15,449.76/x
  3. Step 3: Cross multiply
    25,521.44x = 35,220 × 15,449.76
  4. Step 4: Simplify right side
    25,521.44x = 544,140,547.20
  5. Step 5: Solve for x
    x = 544,140,547.20/25,521.44
  6. Step 6: Final answer
    x = 21,320.92

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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.