Home / 18,864.90-28,159.65-16,216.20

Finding the Fourth Proportional to 18,864.90, 28,159.65 and 16,216.20

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Solution

The fourth proportional to 18,864.90, 28,159.65 and 16,216.20 is: 24,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.90 : 28,159.65 = 16,216.20 : x
  2. Step 2: Convert to fraction form
    18,864.90/28,159.65 = 16,216.20/x
  3. Step 3: Cross multiply
    18,864.90x = 28,159.65 × 16,216.20
  4. Step 4: Simplify right side
    18,864.90x = 456,642,516.33
  5. Step 5: Solve for x
    x = 456,642,516.33/18,864.90
  6. Step 6: Final answer
    x = 24,205.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.