Home / 31,387.74-43,323.30-19,444.29

Finding the Fourth Proportional to 31,387.74, 43,323.30 and 19,444.29

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Solution

The fourth proportional to 31,387.74, 43,323.30 and 19,444.29 is: 26,838.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.74 : 43,323.30 = 19,444.29 : x
  2. Step 2: Convert to fraction form
    31,387.74/43,323.30 = 19,444.29/x
  3. Step 3: Cross multiply
    31,387.74x = 43,323.30 × 19,444.29
  4. Step 4: Simplify right side
    31,387.74x = 842,390,808.96
  5. Step 5: Solve for x
    x = 842,390,808.96/31,387.74
  6. Step 6: Final answer
    x = 26,838.21

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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.