Home / 25,356.40-34,986.36-14,740.60

Finding the Fourth Proportional to 25,356.40, 34,986.36 and 14,740.60

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Solution

The fourth proportional to 25,356.40, 34,986.36 and 14,740.60 is: 20,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,356.40 : 34,986.36 = 14,740.60 : x
  2. Step 2: Convert to fraction form
    25,356.40/34,986.36 = 14,740.60/x
  3. Step 3: Cross multiply
    25,356.40x = 34,986.36 × 14,740.60
  4. Step 4: Simplify right side
    25,356.40x = 515,719,938.22
  5. Step 5: Solve for x
    x = 515,719,938.22/25,356.40
  6. Step 6: Final answer
    x = 20,338.85

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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.