Home / 28,274.28-39,019.86-16,339.20

Finding the Fourth Proportional to 28,274.28, 39,019.86 and 16,339.20

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Solution

The fourth proportional to 28,274.28, 39,019.86 and 16,339.20 is: 22,548.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274.28 : 39,019.86 = 16,339.20 : x
  2. Step 2: Convert to fraction form
    28,274.28/39,019.86 = 16,339.20/x
  3. Step 3: Cross multiply
    28,274.28x = 39,019.86 × 16,339.20
  4. Step 4: Simplify right side
    28,274.28x = 637,553,296.51
  5. Step 5: Solve for x
    x = 637,553,296.51/28,274.28
  6. Step 6: Final answer
    x = 22,548.88

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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.