Home / 23,187.50-31,998.75-13,251.50

Finding the Fourth Proportional to 23,187.50, 31,998.75 and 13,251.50

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Solution

The fourth proportional to 23,187.50, 31,998.75 and 13,251.50 is: 18,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,187.50 : 31,998.75 = 13,251.50 : x
  2. Step 2: Convert to fraction form
    23,187.50/31,998.75 = 13,251.50/x
  3. Step 3: Cross multiply
    23,187.50x = 31,998.75 × 13,251.50
  4. Step 4: Simplify right side
    23,187.50x = 424,031,435.63
  5. Step 5: Solve for x
    x = 424,031,435.63/23,187.50
  6. Step 6: Final answer
    x = 18,287.07

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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.