Home / 28,415.24-39,215.17-16,478.47

Finding the Fourth Proportional to 28,415.24, 39,215.17 and 16,478.47

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Solution

The fourth proportional to 28,415.24, 39,215.17 and 16,478.47 is: 22,741.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.24 : 39,215.17 = 16,478.47 : x
  2. Step 2: Convert to fraction form
    28,415.24/39,215.17 = 16,478.47/x
  3. Step 3: Cross multiply
    28,415.24x = 39,215.17 × 16,478.47
  4. Step 4: Simplify right side
    28,415.24x = 646,206,002.39
  5. Step 5: Solve for x
    x = 646,206,002.39/28,415.24
  6. Step 6: Final answer
    x = 22,741.53

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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.