Home / 42,947.33-64,446.11-17,985.28

Finding the Fourth Proportional to 42,947.33, 64,446.11 and 17,985.28

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Solution

The fourth proportional to 42,947.33, 64,446.11 and 17,985.28 is: 26,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,947.33 : 64,446.11 = 17,985.28 : x
  2. Step 2: Convert to fraction form
    42,947.33/64,446.11 = 17,985.28/x
  3. Step 3: Cross multiply
    42,947.33x = 64,446.11 × 17,985.28
  4. Step 4: Simplify right side
    42,947.33x = 1,159,081,333.26
  5. Step 5: Solve for x
    x = 1,159,081,333.26/42,947.33
  6. Step 6: Final answer
    x = 26,988.44

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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.