Home / 31,836.84-47,689.64-18,649.23

Finding the Fourth Proportional to 31,836.84, 47,689.64 and 18,649.23

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Solution

The fourth proportional to 31,836.84, 47,689.64 and 18,649.23 is: 27,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.84 : 47,689.64 = 18,649.23 : x
  2. Step 2: Convert to fraction form
    31,836.84/47,689.64 = 18,649.23/x
  3. Step 3: Cross multiply
    31,836.84x = 47,689.64 × 18,649.23
  4. Step 4: Simplify right side
    31,836.84x = 889,374,971.73
  5. Step 5: Solve for x
    x = 889,374,971.73/31,836.84
  6. Step 6: Final answer
    x = 27,935.40

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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.