Home / 28,728.04-39,643.50-16,152.52

Finding the Fourth Proportional to 28,728.04, 39,643.50 and 16,152.52

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Solution

The fourth proportional to 28,728.04, 39,643.50 and 16,152.52 is: 22,289.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.04 : 39,643.50 = 16,152.52 : x
  2. Step 2: Convert to fraction form
    28,728.04/39,643.50 = 16,152.52/x
  3. Step 3: Cross multiply
    28,728.04x = 39,643.50 × 16,152.52
  4. Step 4: Simplify right side
    28,728.04x = 640,342,426.62
  5. Step 5: Solve for x
    x = 640,342,426.62/28,728.04
  6. Step 6: Final answer
    x = 22,289.81

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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.