Home / 27,779.17-38,339.04-16,447.81

Finding the Fourth Proportional to 27,779.17, 38,339.04 and 16,447.81

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Solution

The fourth proportional to 27,779.17, 38,339.04 and 16,447.81 is: 22,700.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,779.17 : 38,339.04 = 16,447.81 : x
  2. Step 2: Convert to fraction form
    27,779.17/38,339.04 = 16,447.81/x
  3. Step 3: Cross multiply
    27,779.17x = 38,339.04 × 16,447.81
  4. Step 4: Simplify right side
    27,779.17x = 630,593,245.50
  5. Step 5: Solve for x
    x = 630,593,245.50/27,779.17
  6. Step 6: Final answer
    x = 22,700.22

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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.