Home / 28,718.37-39,633.17-16,143.93

Finding the Fourth Proportional to 28,718.37, 39,633.17 and 16,143.93

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Solution

The fourth proportional to 28,718.37, 39,633.17 and 16,143.93 is: 22,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.37 : 39,633.17 = 16,143.93 : x
  2. Step 2: Convert to fraction form
    28,718.37/39,633.17 = 16,143.93/x
  3. Step 3: Cross multiply
    28,718.37x = 39,633.17 × 16,143.93
  4. Step 4: Simplify right side
    28,718.37x = 639,835,041.44
  5. Step 5: Solve for x
    x = 639,835,041.44/28,718.37
  6. Step 6: Final answer
    x = 22,279.64

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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.