Home / 19,222.87-28,810.92-13,602.16

Finding the Fourth Proportional to 19,222.87, 28,810.92 and 13,602.16

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Solution

The fourth proportional to 19,222.87, 28,810.92 and 13,602.16 is: 20,386.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,222.87 : 28,810.92 = 13,602.16 : x
  2. Step 2: Convert to fraction form
    19,222.87/28,810.92 = 13,602.16/x
  3. Step 3: Cross multiply
    19,222.87x = 28,810.92 × 13,602.16
  4. Step 4: Simplify right side
    19,222.87x = 391,890,671.56
  5. Step 5: Solve for x
    x = 391,890,671.56/19,222.87
  6. Step 6: Final answer
    x = 20,386.69

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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.