Home / 24,721.54-34,115.78-13,390.99

Finding the Fourth Proportional to 24,721.54, 34,115.78 and 13,390.99

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Solution

The fourth proportional to 24,721.54, 34,115.78 and 13,390.99 is: 18,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,721.54 : 34,115.78 = 13,390.99 : x
  2. Step 2: Convert to fraction form
    24,721.54/34,115.78 = 13,390.99/x
  3. Step 3: Cross multiply
    24,721.54x = 34,115.78 × 13,390.99
  4. Step 4: Simplify right side
    24,721.54x = 456,844,068.82
  5. Step 5: Solve for x
    x = 456,844,068.82/24,721.54
  6. Step 6: Final answer
    x = 18,479.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.