Home / 19,888.67-27,439.53-12,332.28

Finding the Fourth Proportional to 19,888.67, 27,439.53 and 12,332.28

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Solution

The fourth proportional to 19,888.67, 27,439.53 and 12,332.28 is: 17,014.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.67 : 27,439.53 = 12,332.28 : x
  2. Step 2: Convert to fraction form
    19,888.67/27,439.53 = 12,332.28/x
  3. Step 3: Cross multiply
    19,888.67x = 27,439.53 × 12,332.28
  4. Step 4: Simplify right side
    19,888.67x = 338,391,948.14
  5. Step 5: Solve for x
    x = 338,391,948.14/19,888.67
  6. Step 6: Final answer
    x = 17,014.31

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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.