Home / 28,780.02-43,166.91-7,722.18

Finding the Fourth Proportional to 28,780.02, 43,166.91 and 7,722.18

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Solution

The fourth proportional to 28,780.02, 43,166.91 and 7,722.18 is: 11,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,780.02 : 43,166.91 = 7,722.18 : x
  2. Step 2: Convert to fraction form
    28,780.02/43,166.91 = 7,722.18/x
  3. Step 3: Cross multiply
    28,780.02x = 43,166.91 × 7,722.18
  4. Step 4: Simplify right side
    28,780.02x = 333,342,649.06
  5. Step 5: Solve for x
    x = 333,342,649.06/28,780.02
  6. Step 6: Final answer
    x = 11,582.43

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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.