Home / 20,962.19-28,928.81-13,006.98

Finding the Fourth Proportional to 20,962.19, 28,928.81 and 13,006.98

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Solution

The fourth proportional to 20,962.19, 28,928.81 and 13,006.98 is: 17,950.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.19 : 28,928.81 = 13,006.98 : x
  2. Step 2: Convert to fraction form
    20,962.19/28,928.81 = 13,006.98/x
  3. Step 3: Cross multiply
    20,962.19x = 28,928.81 × 13,006.98
  4. Step 4: Simplify right side
    20,962.19x = 376,276,485.61
  5. Step 5: Solve for x
    x = 376,276,485.61/20,962.19
  6. Step 6: Final answer
    x = 17,950.24

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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.