Home / 30,767.32-42,458.91-16,620.16

Finding the Fourth Proportional to 30,767.32, 42,458.91 and 16,620.16

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Solution

The fourth proportional to 30,767.32, 42,458.91 and 16,620.16 is: 22,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,767.32 : 42,458.91 = 16,620.16 : x
  2. Step 2: Convert to fraction form
    30,767.32/42,458.91 = 16,620.16/x
  3. Step 3: Cross multiply
    30,767.32x = 42,458.91 × 16,620.16
  4. Step 4: Simplify right side
    30,767.32x = 705,673,877.63
  5. Step 5: Solve for x
    x = 705,673,877.63/30,767.32
  6. Step 6: Final answer
    x = 22,935.83

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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.