Home / 39,339.01-54,288.46-21,434.01

Finding the Fourth Proportional to 39,339.01, 54,288.46 and 21,434.01

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Solution

The fourth proportional to 39,339.01, 54,288.46 and 21,434.01 is: 29,579.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,339.01 : 54,288.46 = 21,434.01 : x
  2. Step 2: Convert to fraction form
    39,339.01/54,288.46 = 21,434.01/x
  3. Step 3: Cross multiply
    39,339.01x = 54,288.46 × 21,434.01
  4. Step 4: Simplify right side
    39,339.01x = 1,163,619,287.35
  5. Step 5: Solve for x
    x = 1,163,619,287.35/39,339.01
  6. Step 6: Final answer
    x = 29,579.27

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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.