Home / 28,253.43-42,386.99-8,530.80

Finding the Fourth Proportional to 28,253.43, 42,386.99 and 8,530.80

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Solution

The fourth proportional to 28,253.43, 42,386.99 and 8,530.80 is: 12,798.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.43 : 42,386.99 = 8,530.80 : x
  2. Step 2: Convert to fraction form
    28,253.43/42,386.99 = 8,530.80/x
  3. Step 3: Cross multiply
    28,253.43x = 42,386.99 × 8,530.80
  4. Step 4: Simplify right side
    28,253.43x = 361,594,891.64
  5. Step 5: Solve for x
    x = 361,594,891.64/28,253.43
  6. Step 6: Final answer
    x = 12,798.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.