Home / 31,445.98-43,415.37-19,521.97

Finding the Fourth Proportional to 31,445.98, 43,415.37 and 19,521.97

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Solution

The fourth proportional to 31,445.98, 43,415.37 and 19,521.97 is: 26,952.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,445.98 : 43,415.37 = 19,521.97 : x
  2. Step 2: Convert to fraction form
    31,445.98/43,415.37 = 19,521.97/x
  3. Step 3: Cross multiply
    31,445.98x = 43,415.37 × 19,521.97
  4. Step 4: Simplify right side
    31,445.98x = 847,553,442.14
  5. Step 5: Solve for x
    x = 847,553,442.14/31,445.98
  6. Step 6: Final answer
    x = 26,952.68

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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.