Home / 19,100.90-28,642.05-6,621.63

Finding the Fourth Proportional to 19,100.90, 28,642.05 and 6,621.63

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Solution

The fourth proportional to 19,100.90, 28,642.05 and 6,621.63 is: 9,929.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,100.90 : 28,642.05 = 6,621.63 : x
  2. Step 2: Convert to fraction form
    19,100.90/28,642.05 = 6,621.63/x
  3. Step 3: Cross multiply
    19,100.90x = 28,642.05 × 6,621.63
  4. Step 4: Simplify right side
    19,100.90x = 189,657,057.54
  5. Step 5: Solve for x
    x = 189,657,057.54/19,100.90
  6. Step 6: Final answer
    x = 9,929.22

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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.