Home / 31,708.44-47,569.62-11,987.16

Finding the Fourth Proportional to 31,708.44, 47,569.62 and 11,987.16

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Solution

The fourth proportional to 31,708.44, 47,569.62 and 11,987.16 is: 17,983.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708.44 : 47,569.62 = 11,987.16 : x
  2. Step 2: Convert to fraction form
    31,708.44/47,569.62 = 11,987.16/x
  3. Step 3: Cross multiply
    31,708.44x = 47,569.62 × 11,987.16
  4. Step 4: Simplify right side
    31,708.44x = 570,224,646.08
  5. Step 5: Solve for x
    x = 570,224,646.08/31,708.44
  6. Step 6: Final answer
    x = 17,983.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.