Home / 31,318.60-43,218.04-17,887.24

Finding the Fourth Proportional to 31,318.60, 43,218.04 and 17,887.24

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Solution

The fourth proportional to 31,318.60, 43,218.04 and 17,887.24 is: 24,683.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,318.60 : 43,218.04 = 17,887.24 : x
  2. Step 2: Convert to fraction form
    31,318.60/43,218.04 = 17,887.24/x
  3. Step 3: Cross multiply
    31,318.60x = 43,218.04 × 17,887.24
  4. Step 4: Simplify right side
    31,318.60x = 773,051,453.81
  5. Step 5: Solve for x
    x = 773,051,453.81/31,318.60
  6. Step 6: Final answer
    x = 24,683.46

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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.