Home / 28,434.68-39,239.28-16,499.18

Finding the Fourth Proportional to 28,434.68, 39,239.28 and 16,499.18

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Solution

The fourth proportional to 28,434.68, 39,239.28 and 16,499.18 is: 22,768.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,434.68 : 39,239.28 = 16,499.18 : x
  2. Step 2: Convert to fraction form
    28,434.68/39,239.28 = 16,499.18/x
  3. Step 3: Cross multiply
    28,434.68x = 39,239.28 × 16,499.18
  4. Step 4: Simplify right side
    28,434.68x = 647,415,943.79
  5. Step 5: Solve for x
    x = 647,415,943.79/28,434.68
  6. Step 6: Final answer
    x = 22,768.53

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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.