Home / 28,165.68-42,233.36-11,290.22

Finding the Fourth Proportional to 28,165.68, 42,233.36 and 11,290.22

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Solution

The fourth proportional to 28,165.68, 42,233.36 and 11,290.22 is: 16,929.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,165.68 : 42,233.36 = 11,290.22 : x
  2. Step 2: Convert to fraction form
    28,165.68/42,233.36 = 11,290.22/x
  3. Step 3: Cross multiply
    28,165.68x = 42,233.36 × 11,290.22
  4. Step 4: Simplify right side
    28,165.68x = 476,823,925.74
  5. Step 5: Solve for x
    x = 476,823,925.74/28,165.68
  6. Step 6: Final answer
    x = 16,929.25

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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.