Home / 31,186.40-46,750.43-11,459.66

Finding the Fourth Proportional to 31,186.40, 46,750.43 and 11,459.66

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Solution

The fourth proportional to 31,186.40, 46,750.43 and 11,459.66 is: 17,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,186.40 : 46,750.43 = 11,459.66 : x
  2. Step 2: Convert to fraction form
    31,186.40/46,750.43 = 11,459.66/x
  3. Step 3: Cross multiply
    31,186.40x = 46,750.43 × 11,459.66
  4. Step 4: Simplify right side
    31,186.40x = 535,743,827.55
  5. Step 5: Solve for x
    x = 535,743,827.55/31,186.40
  6. Step 6: Final answer
    x = 17,178.77

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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.