Home / 39,173.05-54,058.71-21,267.91

Finding the Fourth Proportional to 39,173.05, 54,058.71 and 21,267.91

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Solution

The fourth proportional to 39,173.05, 54,058.71 and 21,267.91 is: 29,349.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,173.05 : 54,058.71 = 21,267.91 : x
  2. Step 2: Convert to fraction form
    39,173.05/54,058.71 = 21,267.91/x
  3. Step 3: Cross multiply
    39,173.05x = 54,058.71 × 21,267.91
  4. Step 4: Simplify right side
    39,173.05x = 1,149,715,779.00
  5. Step 5: Solve for x
    x = 1,149,715,779.00/39,173.05
  6. Step 6: Final answer
    x = 29,349.66

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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.