Home / 39,151.42-54,031.62-22,155.67

Finding the Fourth Proportional to 39,151.42, 54,031.62 and 22,155.67

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Solution

The fourth proportional to 39,151.42, 54,031.62 and 22,155.67 is: 30,576.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,151.42 : 54,031.62 = 22,155.67 : x
  2. Step 2: Convert to fraction form
    39,151.42/54,031.62 = 22,155.67/x
  3. Step 3: Cross multiply
    39,151.42x = 54,031.62 × 22,155.67
  4. Step 4: Simplify right side
    39,151.42x = 1,197,106,742.29
  5. Step 5: Solve for x
    x = 1,197,106,742.29/39,151.42
  6. Step 6: Final answer
    x = 30,576.33

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Double scale
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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.