Home / 25,360.20-35,014.28-15,803.92

Finding the Fourth Proportional to 25,360.20, 35,014.28 and 15,803.92

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Solution

The fourth proportional to 25,360.20, 35,014.28 and 15,803.92 is: 21,820.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,360.20 : 35,014.28 = 15,803.92 : x
  2. Step 2: Convert to fraction form
    25,360.20/35,014.28 = 15,803.92/x
  3. Step 3: Cross multiply
    25,360.20x = 35,014.28 × 15,803.92
  4. Step 4: Simplify right side
    25,360.20x = 553,362,879.98
  5. Step 5: Solve for x
    x = 553,362,879.98/25,360.20
  6. Step 6: Final answer
    x = 21,820.13

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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.