Home / 25,225.40-37,821.90-10,440.20

Finding the Fourth Proportional to 25,225.40, 37,821.90 and 10,440.20

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Solution

The fourth proportional to 25,225.40, 37,821.90 and 10,440.20 is: 15,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,225.40 : 37,821.90 = 10,440.20 : x
  2. Step 2: Convert to fraction form
    25,225.40/37,821.90 = 10,440.20/x
  3. Step 3: Cross multiply
    25,225.40x = 37,821.90 × 10,440.20
  4. Step 4: Simplify right side
    25,225.40x = 394,868,200.38
  5. Step 5: Solve for x
    x = 394,868,200.38/25,225.40
  6. Step 6: Final answer
    x = 15,653.60

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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.