Home / 38,449.08-53,039.52-31,287.06

Finding the Fourth Proportional to 38,449.08, 53,039.52 and 31,287.06

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Solution

The fourth proportional to 38,449.08, 53,039.52 and 31,287.06 is: 43,159.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,449.08 : 53,039.52 = 31,287.06 : x
  2. Step 2: Convert to fraction form
    38,449.08/53,039.52 = 31,287.06/x
  3. Step 3: Cross multiply
    38,449.08x = 53,039.52 × 31,287.06
  4. Step 4: Simplify right side
    38,449.08x = 1,659,450,644.61
  5. Step 5: Solve for x
    x = 1,659,450,644.61/38,449.08
  6. Step 6: Final answer
    x = 43,159.70

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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.