Home / 19,290.48-26,621.10-10,906.80

Finding the Fourth Proportional to 19,290.48, 26,621.10 and 10,906.80

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Solution

The fourth proportional to 19,290.48, 26,621.10 and 10,906.80 is: 15,051.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,290.48 : 26,621.10 = 10,906.80 : x
  2. Step 2: Convert to fraction form
    19,290.48/26,621.10 = 10,906.80/x
  3. Step 3: Cross multiply
    19,290.48x = 26,621.10 × 10,906.80
  4. Step 4: Simplify right side
    19,290.48x = 290,351,013.48
  5. Step 5: Solve for x
    x = 290,351,013.48/19,290.48
  6. Step 6: Final answer
    x = 15,051.52

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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.