Home / 28,615.66-39,493.14-18,005.08

Finding the Fourth Proportional to 28,615.66, 39,493.14 and 18,005.08

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Solution

The fourth proportional to 28,615.66, 39,493.14 and 18,005.08 is: 24,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.66 : 39,493.14 = 18,005.08 : x
  2. Step 2: Convert to fraction form
    28,615.66/39,493.14 = 18,005.08/x
  3. Step 3: Cross multiply
    28,615.66x = 39,493.14 × 18,005.08
  4. Step 4: Simplify right side
    28,615.66x = 711,077,145.15
  5. Step 5: Solve for x
    x = 711,077,145.15/28,615.66
  6. Step 6: Final answer
    x = 24,849.23

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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.