Home / 31,981.80-44,123.22-20,045.64

Finding the Fourth Proportional to 31,981.80, 44,123.22 and 20,045.64

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Solution

The fourth proportional to 31,981.80, 44,123.22 and 20,045.64 is: 27,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.80 : 44,123.22 = 20,045.64 : x
  2. Step 2: Convert to fraction form
    31,981.80/44,123.22 = 20,045.64/x
  3. Step 3: Cross multiply
    31,981.80x = 44,123.22 × 20,045.64
  4. Step 4: Simplify right side
    31,981.80x = 884,478,183.76
  5. Step 5: Solve for x
    x = 884,478,183.76/31,981.80
  6. Step 6: Final answer
    x = 27,655.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.