Home / 25,410.84-38,117.04-7,880.76

Finding the Fourth Proportional to 25,410.84, 38,117.04 and 7,880.76

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Solution

The fourth proportional to 25,410.84, 38,117.04 and 7,880.76 is: 11,821.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,410.84 : 38,117.04 = 7,880.76 : x
  2. Step 2: Convert to fraction form
    25,410.84/38,117.04 = 7,880.76/x
  3. Step 3: Cross multiply
    25,410.84x = 38,117.04 × 7,880.76
  4. Step 4: Simplify right side
    25,410.84x = 300,391,244.15
  5. Step 5: Solve for x
    x = 300,391,244.15/25,410.84
  6. Step 6: Final answer
    x = 11,821.38

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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.