Home / 31,427.80-43,370.52-17,281.55

Finding the Fourth Proportional to 31,427.80, 43,370.52 and 17,281.55

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Solution

The fourth proportional to 31,427.80, 43,370.52 and 17,281.55 is: 23,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,427.80 : 43,370.52 = 17,281.55 : x
  2. Step 2: Convert to fraction form
    31,427.80/43,370.52 = 17,281.55/x
  3. Step 3: Cross multiply
    31,427.80x = 43,370.52 × 17,281.55
  4. Step 4: Simplify right side
    31,427.80x = 749,509,809.91
  5. Step 5: Solve for x
    x = 749,509,809.91/31,427.80
  6. Step 6: Final answer
    x = 23,848.62

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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.