Home / 25,920.30-38,880.54-7,201.38

Finding the Fourth Proportional to 25,920.30, 38,880.54 and 7,201.38

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Solution

The fourth proportional to 25,920.30, 38,880.54 and 7,201.38 is: 10,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,920.30 : 38,880.54 = 7,201.38 : x
  2. Step 2: Convert to fraction form
    25,920.30/38,880.54 = 7,201.38/x
  3. Step 3: Cross multiply
    25,920.30x = 38,880.54 × 7,201.38
  4. Step 4: Simplify right side
    25,920.30x = 279,993,543.15
  5. Step 5: Solve for x
    x = 279,993,543.15/25,920.30
  6. Step 6: Final answer
    x = 10,802.10

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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.