Home / 28,323.19-39,081.63-16,387.64

Finding the Fourth Proportional to 28,323.19, 39,081.63 and 16,387.64

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Solution

The fourth proportional to 28,323.19, 39,081.63 and 16,387.64 is: 22,612.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.19 : 39,081.63 = 16,387.64 : x
  2. Step 2: Convert to fraction form
    28,323.19/39,081.63 = 16,387.64/x
  3. Step 3: Cross multiply
    28,323.19x = 39,081.63 × 16,387.64
  4. Step 4: Simplify right side
    28,323.19x = 640,455,698.82
  5. Step 5: Solve for x
    x = 640,455,698.82/28,323.19
  6. Step 6: Final answer
    x = 22,612.41

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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.