Home / 25,880.48-35,715.84-15,810.56

Finding the Fourth Proportional to 25,880.48, 35,715.84 and 15,810.56

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Solution

The fourth proportional to 25,880.48, 35,715.84 and 15,810.56 is: 21,819.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.48 : 35,715.84 = 15,810.56 : x
  2. Step 2: Convert to fraction form
    25,880.48/35,715.84 = 15,810.56/x
  3. Step 3: Cross multiply
    25,880.48x = 35,715.84 × 15,810.56
  4. Step 4: Simplify right side
    25,880.48x = 564,687,431.27
  5. Step 5: Solve for x
    x = 564,687,431.27/25,880.48
  6. Step 6: Final answer
    x = 21,819.05

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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.