Home / 25,360.12-38,025.78-21,225.88

Finding the Fourth Proportional to 25,360.12, 38,025.78 and 21,225.88

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Solution

The fourth proportional to 25,360.12, 38,025.78 and 21,225.88 is: 31,826.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,360.12 : 38,025.78 = 21,225.88 : x
  2. Step 2: Convert to fraction form
    25,360.12/38,025.78 = 21,225.88/x
  3. Step 3: Cross multiply
    25,360.12x = 38,025.78 × 21,225.88
  4. Step 4: Simplify right side
    25,360.12x = 807,130,643.19
  5. Step 5: Solve for x
    x = 807,130,643.19/25,360.12
  6. Step 6: Final answer
    x = 31,826.77

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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.