Home / 25,852.60-35,679.95-15,778.95

Finding the Fourth Proportional to 25,852.60, 35,679.95 and 15,778.95

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Solution

The fourth proportional to 25,852.60, 35,679.95 and 15,778.95 is: 21,777.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,852.60 : 35,679.95 = 15,778.95 : x
  2. Step 2: Convert to fraction form
    25,852.60/35,679.95 = 15,778.95/x
  3. Step 3: Cross multiply
    25,852.60x = 35,679.95 × 15,778.95
  4. Step 4: Simplify right side
    25,852.60x = 562,992,147.05
  5. Step 5: Solve for x
    x = 562,992,147.05/25,852.60
  6. Step 6: Final answer
    x = 21,777.00

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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.