Home / 31,239.42-43,065.54-22,271.36

Finding the Fourth Proportional to 31,239.42, 43,065.54 and 22,271.36

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Solution

The fourth proportional to 31,239.42, 43,065.54 and 22,271.36 is: 30,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,239.42 : 43,065.54 = 22,271.36 : x
  2. Step 2: Convert to fraction form
    31,239.42/43,065.54 = 22,271.36/x
  3. Step 3: Cross multiply
    31,239.42x = 43,065.54 × 22,271.36
  4. Step 4: Simplify right side
    31,239.42x = 959,127,929.61
  5. Step 5: Solve for x
    x = 959,127,929.61/31,239.42
  6. Step 6: Final answer
    x = 30,702.49

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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.