Home / 31,347.11-47,028.27-18,028.63

Finding the Fourth Proportional to 31,347.11, 47,028.27 and 18,028.63

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Solution

The fourth proportional to 31,347.11, 47,028.27 and 18,028.63 is: 27,047.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.11 : 47,028.27 = 18,028.63 : x
  2. Step 2: Convert to fraction form
    31,347.11/47,028.27 = 18,028.63/x
  3. Step 3: Cross multiply
    31,347.11x = 47,028.27 × 18,028.63
  4. Step 4: Simplify right side
    31,347.11x = 847,855,189.23
  5. Step 5: Solve for x
    x = 847,855,189.23/31,347.11
  6. Step 6: Final answer
    x = 27,047.32

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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.