Home / 30,727.65-42,403.69-17,298.86

Finding the Fourth Proportional to 30,727.65, 42,403.69 and 17,298.86

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Solution

The fourth proportional to 30,727.65, 42,403.69 and 17,298.86 is: 23,872.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,727.65 : 42,403.69 = 17,298.86 : x
  2. Step 2: Convert to fraction form
    30,727.65/42,403.69 = 17,298.86/x
  3. Step 3: Cross multiply
    30,727.65x = 42,403.69 × 17,298.86
  4. Step 4: Simplify right side
    30,727.65x = 733,535,410.30
  5. Step 5: Solve for x
    x = 733,535,410.30/30,727.65
  6. Step 6: Final answer
    x = 23,872.16

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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.