Home / 25,427.28-35,091.96-15,360.72

Finding the Fourth Proportional to 25,427.28, 35,091.96 and 15,360.72

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Solution

The fourth proportional to 25,427.28, 35,091.96 and 15,360.72 is: 21,199.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,427.28 : 35,091.96 = 15,360.72 : x
  2. Step 2: Convert to fraction form
    25,427.28/35,091.96 = 15,360.72/x
  3. Step 3: Cross multiply
    25,427.28x = 35,091.96 × 15,360.72
  4. Step 4: Simplify right side
    25,427.28x = 539,037,771.81
  5. Step 5: Solve for x
    x = 539,037,771.81/25,427.28
  6. Step 6: Final answer
    x = 21,199.19

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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.