Home / 31,270.30-43,108.56-19,326.88

Finding the Fourth Proportional to 31,270.30, 43,108.56 and 19,326.88

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Solution

The fourth proportional to 31,270.30, 43,108.56 and 19,326.88 is: 26,643.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,270.30 : 43,108.56 = 19,326.88 : x
  2. Step 2: Convert to fraction form
    31,270.30/43,108.56 = 19,326.88/x
  3. Step 3: Cross multiply
    31,270.30x = 43,108.56 × 19,326.88
  4. Step 4: Simplify right side
    31,270.30x = 833,153,966.09
  5. Step 5: Solve for x
    x = 833,153,966.09/31,270.30
  6. Step 6: Final answer
    x = 26,643.62

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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.