Home / 31,509.08-43,480.89-19,572.18

Finding the Fourth Proportional to 31,509.08, 43,480.89 and 19,572.18

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Solution

The fourth proportional to 31,509.08, 43,480.89 and 19,572.18 is: 27,008.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,509.08 : 43,480.89 = 19,572.18 : x
  2. Step 2: Convert to fraction form
    31,509.08/43,480.89 = 19,572.18/x
  3. Step 3: Cross multiply
    31,509.08x = 43,480.89 × 19,572.18
  4. Step 4: Simplify right side
    31,509.08x = 851,015,854.57
  5. Step 5: Solve for x
    x = 851,015,854.57/31,509.08
  6. Step 6: Final answer
    x = 27,008.59

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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.