Home / 22,206.86-30,644.18-12,135.39

Finding the Fourth Proportional to 22,206.86, 30,644.18 and 12,135.39

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Solution

The fourth proportional to 22,206.86, 30,644.18 and 12,135.39 is: 16,746.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,206.86 : 30,644.18 = 12,135.39 : x
  2. Step 2: Convert to fraction form
    22,206.86/30,644.18 = 12,135.39/x
  3. Step 3: Cross multiply
    22,206.86x = 30,644.18 × 12,135.39
  4. Step 4: Simplify right side
    22,206.86x = 371,879,075.53
  5. Step 5: Solve for x
    x = 371,879,075.53/22,206.86
  6. Step 6: Final answer
    x = 16,746.14

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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.