Home / 28,782.20-39,721.47-16,036.22

Finding the Fourth Proportional to 28,782.20, 39,721.47 and 16,036.22

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Solution

The fourth proportional to 28,782.20, 39,721.47 and 16,036.22 is: 22,131.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,782.20 : 39,721.47 = 16,036.22 : x
  2. Step 2: Convert to fraction form
    28,782.20/39,721.47 = 16,036.22/x
  3. Step 3: Cross multiply
    28,782.20x = 39,721.47 × 16,036.22
  4. Step 4: Simplify right side
    28,782.20x = 636,982,231.64
  5. Step 5: Solve for x
    x = 636,982,231.64/28,782.20
  6. Step 6: Final answer
    x = 22,131.12

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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.