Home / 39,619.91-54,675.02-21,470.27

Finding the Fourth Proportional to 39,619.91, 54,675.02 and 21,470.27

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Solution

The fourth proportional to 39,619.91, 54,675.02 and 21,470.27 is: 29,628.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,619.91 : 54,675.02 = 21,470.27 : x
  2. Step 2: Convert to fraction form
    39,619.91/54,675.02 = 21,470.27/x
  3. Step 3: Cross multiply
    39,619.91x = 54,675.02 × 21,470.27
  4. Step 4: Simplify right side
    39,619.91x = 1,173,887,334.30
  5. Step 5: Solve for x
    x = 1,173,887,334.30/39,619.91
  6. Step 6: Final answer
    x = 29,628.72

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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.