Home / 28,623.04-42,936-8,901.28

Finding the Fourth Proportional to 28,623.04, 42,936 and 8,901.28

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Solution

The fourth proportional to 28,623.04, 42,936 and 8,901.28 is: 13,352.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.04 : 42,936 = 8,901.28 : x
  2. Step 2: Convert to fraction form
    28,623.04/42,936 = 8,901.28/x
  3. Step 3: Cross multiply
    28,623.04x = 42,936 × 8,901.28
  4. Step 4: Simplify right side
    28,623.04x = 382,185,358.08
  5. Step 5: Solve for x
    x = 382,185,358.08/28,623.04
  6. Step 6: Final answer
    x = 13,352.37

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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.