Home / 28,727.52-39,643.56-16,152.28

Finding the Fourth Proportional to 28,727.52, 39,643.56 and 16,152.28

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Solution

The fourth proportional to 28,727.52, 39,643.56 and 16,152.28 is: 22,289.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.52 : 39,643.56 = 16,152.28 : x
  2. Step 2: Convert to fraction form
    28,727.52/39,643.56 = 16,152.28/x
  3. Step 3: Cross multiply
    28,727.52x = 39,643.56 × 16,152.28
  4. Step 4: Simplify right side
    28,727.52x = 640,333,881.32
  5. Step 5: Solve for x
    x = 640,333,881.32/28,727.52
  6. Step 6: Final answer
    x = 22,289.91

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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.