Home / 23,119.58-31,905.17-13,557.52

Finding the Fourth Proportional to 23,119.58, 31,905.17 and 13,557.52

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Solution

The fourth proportional to 23,119.58, 31,905.17 and 13,557.52 is: 18,709.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,119.58 : 31,905.17 = 13,557.52 : x
  2. Step 2: Convert to fraction form
    23,119.58/31,905.17 = 13,557.52/x
  3. Step 3: Cross multiply
    23,119.58x = 31,905.17 × 13,557.52
  4. Step 4: Simplify right side
    23,119.58x = 432,554,985.65
  5. Step 5: Solve for x
    x = 432,554,985.65/23,119.58
  6. Step 6: Final answer
    x = 18,709.47

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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.