Home / 31,618.76-47,422.67-11,897.49

Finding the Fourth Proportional to 31,618.76, 47,422.67 and 11,897.49

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Solution

The fourth proportional to 31,618.76, 47,422.67 and 11,897.49 is: 17,844.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,618.76 : 47,422.67 = 11,897.49 : x
  2. Step 2: Convert to fraction form
    31,618.76/47,422.67 = 11,897.49/x
  3. Step 3: Cross multiply
    31,618.76x = 47,422.67 × 11,897.49
  4. Step 4: Simplify right side
    31,618.76x = 564,210,742.10
  5. Step 5: Solve for x
    x = 564,210,742.10/31,618.76
  6. Step 6: Final answer
    x = 17,844.18

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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.