Home / 25,578.59-35,300.07-15,507.99

Finding the Fourth Proportional to 25,578.59, 35,300.07 and 15,507.99

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Solution

The fourth proportional to 25,578.59, 35,300.07 and 15,507.99 is: 21,402.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,578.59 : 35,300.07 = 15,507.99 : x
  2. Step 2: Convert to fraction form
    25,578.59/35,300.07 = 15,507.99/x
  3. Step 3: Cross multiply
    25,578.59x = 35,300.07 × 15,507.99
  4. Step 4: Simplify right side
    25,578.59x = 547,433,132.56
  5. Step 5: Solve for x
    x = 547,433,132.56/25,578.59
  6. Step 6: Final answer
    x = 21,402.01

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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.