Home / 31,301.48-46,952.31-9,115.40

Finding the Fourth Proportional to 31,301.48, 46,952.31 and 9,115.40

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Solution

The fourth proportional to 31,301.48, 46,952.31 and 9,115.40 is: 13,673.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,301.48 : 46,952.31 = 9,115.40 : x
  2. Step 2: Convert to fraction form
    31,301.48/46,952.31 = 9,115.40/x
  3. Step 3: Cross multiply
    31,301.48x = 46,952.31 × 9,115.40
  4. Step 4: Simplify right side
    31,301.48x = 427,988,851.81
  5. Step 5: Solve for x
    x = 427,988,851.81/31,301.48
  6. Step 6: Final answer
    x = 13,673.12

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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.