Home / 28,287.51-39,043.77-16,357.75

Finding the Fourth Proportional to 28,287.51, 39,043.77 and 16,357.75

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Solution

The fourth proportional to 28,287.51, 39,043.77 and 16,357.75 is: 22,577.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.51 : 39,043.77 = 16,357.75 : x
  2. Step 2: Convert to fraction form
    28,287.51/39,043.77 = 16,357.75/x
  3. Step 3: Cross multiply
    28,287.51x = 39,043.77 × 16,357.75
  4. Step 4: Simplify right side
    28,287.51x = 638,668,228.72
  5. Step 5: Solve for x
    x = 638,668,228.72/28,287.51
  6. Step 6: Final answer
    x = 22,577.75

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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.