Home / 25,340.40-38,010.60-18,730.80

Finding the Fourth Proportional to 25,340.40, 38,010.60 and 18,730.80

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Solution

The fourth proportional to 25,340.40, 38,010.60 and 18,730.80 is: 28,096.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,340.40 : 38,010.60 = 18,730.80 : x
  2. Step 2: Convert to fraction form
    25,340.40/38,010.60 = 18,730.80/x
  3. Step 3: Cross multiply
    25,340.40x = 38,010.60 × 18,730.80
  4. Step 4: Simplify right side
    25,340.40x = 711,968,946.48
  5. Step 5: Solve for x
    x = 711,968,946.48/25,340.40
  6. Step 6: Final answer
    x = 28,096.20

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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.