Home / 31,389.36-47,091.45-10,331.06

Finding the Fourth Proportional to 31,389.36, 47,091.45 and 10,331.06

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Solution

The fourth proportional to 31,389.36, 47,091.45 and 10,331.06 is: 15,499.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,389.36 : 47,091.45 = 10,331.06 : x
  2. Step 2: Convert to fraction form
    31,389.36/47,091.45 = 10,331.06/x
  3. Step 3: Cross multiply
    31,389.36x = 47,091.45 × 10,331.06
  4. Step 4: Simplify right side
    31,389.36x = 486,504,451.88
  5. Step 5: Solve for x
    x = 486,504,451.88/31,389.36
  6. Step 6: Final answer
    x = 15,499.02

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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.