Home / 25,860.87-35,695.08-15,115.01

Finding the Fourth Proportional to 25,860.87, 35,695.08 and 15,115.01

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Solution

The fourth proportional to 25,860.87, 35,695.08 and 15,115.01 is: 20,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,860.87 : 35,695.08 = 15,115.01 : x
  2. Step 2: Convert to fraction form
    25,860.87/35,695.08 = 15,115.01/x
  3. Step 3: Cross multiply
    25,860.87x = 35,695.08 × 15,115.01
  4. Step 4: Simplify right side
    25,860.87x = 539,531,312.68
  5. Step 5: Solve for x
    x = 539,531,312.68/25,860.87
  6. Step 6: Final answer
    x = 20,862.84

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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.