Home / 25,862.86-35,692.84-15,111.20

Finding the Fourth Proportional to 25,862.86, 35,692.84 and 15,111.20

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Solution

The fourth proportional to 25,862.86, 35,692.84 and 15,111.20 is: 20,854.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,862.86 : 35,692.84 = 15,111.20 : x
  2. Step 2: Convert to fraction form
    25,862.86/35,692.84 = 15,111.20/x
  3. Step 3: Cross multiply
    25,862.86x = 35,692.84 × 15,111.20
  4. Step 4: Simplify right side
    25,862.86x = 539,361,643.81
  5. Step 5: Solve for x
    x = 539,361,643.81/25,862.86
  6. Step 6: Final answer
    x = 20,854.68

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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.