Home / 19,531.80-26,951.40-11,032.20

Finding the Fourth Proportional to 19,531.80, 26,951.40 and 11,032.20

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Solution

The fourth proportional to 19,531.80, 26,951.40 and 11,032.20 is: 15,223.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,531.80 : 26,951.40 = 11,032.20 : x
  2. Step 2: Convert to fraction form
    19,531.80/26,951.40 = 11,032.20/x
  3. Step 3: Cross multiply
    19,531.80x = 26,951.40 × 11,032.20
  4. Step 4: Simplify right side
    19,531.80x = 297,333,235.08
  5. Step 5: Solve for x
    x = 297,333,235.08/19,531.80
  6. Step 6: Final answer
    x = 15,223.03

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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.