Home / 22,235.07-30,692.12-12,807.39

Finding the Fourth Proportional to 22,235.07, 30,692.12 and 12,807.39

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Solution

The fourth proportional to 22,235.07, 30,692.12 and 12,807.39 is: 17,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,235.07 : 30,692.12 = 12,807.39 : x
  2. Step 2: Convert to fraction form
    22,235.07/30,692.12 = 12,807.39/x
  3. Step 3: Cross multiply
    22,235.07x = 30,692.12 × 12,807.39
  4. Step 4: Simplify right side
    22,235.07x = 393,085,950.77
  5. Step 5: Solve for x
    x = 393,085,950.77/22,235.07
  6. Step 6: Final answer
    x = 17,678.65

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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.