Home / 27,783.12-38,332.87-16,447.65

Finding the Fourth Proportional to 27,783.12, 38,332.87 and 16,447.65

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Solution

The fourth proportional to 27,783.12, 38,332.87 and 16,447.65 is: 22,693.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.12 : 38,332.87 = 16,447.65 : x
  2. Step 2: Convert to fraction form
    27,783.12/38,332.87 = 16,447.65/x
  3. Step 3: Cross multiply
    27,783.12x = 38,332.87 × 16,447.65
  4. Step 4: Simplify right side
    27,783.12x = 630,485,629.26
  5. Step 5: Solve for x
    x = 630,485,629.26/27,783.12
  6. Step 6: Final answer
    x = 22,693.12

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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.