Home / 25,695.20-38,571.60-19,877.60

Finding the Fourth Proportional to 25,695.20, 38,571.60 and 19,877.60

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Solution

The fourth proportional to 25,695.20, 38,571.60 and 19,877.60 is: 29,838.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,695.20 : 38,571.60 = 19,877.60 : x
  2. Step 2: Convert to fraction form
    25,695.20/38,571.60 = 19,877.60/x
  3. Step 3: Cross multiply
    25,695.20x = 38,571.60 × 19,877.60
  4. Step 4: Simplify right side
    25,695.20x = 766,710,836.16
  5. Step 5: Solve for x
    x = 766,710,836.16/25,695.20
  6. Step 6: Final answer
    x = 29,838.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.