Home / 28,786.08-39,730.38-16,210.92

Finding the Fourth Proportional to 28,786.08, 39,730.38 and 16,210.92

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Solution

The fourth proportional to 28,786.08, 39,730.38 and 16,210.92 is: 22,374.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,786.08 : 39,730.38 = 16,210.92 : x
  2. Step 2: Convert to fraction form
    28,786.08/39,730.38 = 16,210.92/x
  3. Step 3: Cross multiply
    28,786.08x = 39,730.38 × 16,210.92
  4. Step 4: Simplify right side
    28,786.08x = 644,066,011.75
  5. Step 5: Solve for x
    x = 644,066,011.75/28,786.08
  6. Step 6: Final answer
    x = 22,374.22

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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.