Home / 19,315.77-28,920.96-14,621.55

Finding the Fourth Proportional to 19,315.77, 28,920.96 and 14,621.55

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Solution

The fourth proportional to 19,315.77, 28,920.96 and 14,621.55 is: 21,892.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,315.77 : 28,920.96 = 14,621.55 : x
  2. Step 2: Convert to fraction form
    19,315.77/28,920.96 = 14,621.55/x
  3. Step 3: Cross multiply
    19,315.77x = 28,920.96 × 14,621.55
  4. Step 4: Simplify right side
    19,315.77x = 422,869,262.69
  5. Step 5: Solve for x
    x = 422,869,262.69/19,315.77
  6. Step 6: Final answer
    x = 21,892.44

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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.