Home / 31,743.84-47,618.95-11,758.71

Finding the Fourth Proportional to 31,743.84, 47,618.95 and 11,758.71

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Solution

The fourth proportional to 31,743.84, 47,618.95 and 11,758.71 is: 17,639.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,743.84 : 47,618.95 = 11,758.71 : x
  2. Step 2: Convert to fraction form
    31,743.84/47,618.95 = 11,758.71/x
  3. Step 3: Cross multiply
    31,743.84x = 47,618.95 × 11,758.71
  4. Step 4: Simplify right side
    31,743.84x = 559,937,394.16
  5. Step 5: Solve for x
    x = 559,937,394.16/31,743.84
  6. Step 6: Final answer
    x = 17,639.25

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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.