Home / 39,130.83-54,000.37-21,225.85

Finding the Fourth Proportional to 39,130.83, 54,000.37 and 21,225.85

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Solution

The fourth proportional to 39,130.83, 54,000.37 and 21,225.85 is: 29,291.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,130.83 : 54,000.37 = 21,225.85 : x
  2. Step 2: Convert to fraction form
    39,130.83/54,000.37 = 21,225.85/x
  3. Step 3: Cross multiply
    39,130.83x = 54,000.37 × 21,225.85
  4. Step 4: Simplify right side
    39,130.83x = 1,146,203,645.10
  5. Step 5: Solve for x
    x = 1,146,203,645.10/39,130.83
  6. Step 6: Final answer
    x = 29,291.58

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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.