Home / 39,427.72-54,436.80-30,336.91

Finding the Fourth Proportional to 39,427.72, 54,436.80 and 30,336.91

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Solution

The fourth proportional to 39,427.72, 54,436.80 and 30,336.91 is: 41,885.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,427.72 : 54,436.80 = 30,336.91 : x
  2. Step 2: Convert to fraction form
    39,427.72/54,436.80 = 30,336.91/x
  3. Step 3: Cross multiply
    39,427.72x = 54,436.80 × 30,336.91
  4. Step 4: Simplify right side
    39,427.72x = 1,651,444,302.29
  5. Step 5: Solve for x
    x = 1,651,444,302.29/39,427.72
  6. Step 6: Final answer
    x = 41,885.36

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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.