Home / 39,440-54,427.20-26,886.72

Finding the Fourth Proportional to 39,440, 54,427.20 and 26,886.72

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Solution

The fourth proportional to 39,440, 54,427.20 and 26,886.72 is: 37,103.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440 : 54,427.20 = 26,886.72 : x
  2. Step 2: Convert to fraction form
    39,440/54,427.20 = 26,886.72/x
  3. Step 3: Cross multiply
    39,440x = 54,427.20 × 26,886.72
  4. Step 4: Simplify right side
    39,440x = 1,463,368,886.78
  5. Step 5: Solve for x
    x = 1,463,368,886.78/39,440
  6. Step 6: Final answer
    x = 37,103.67

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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.