Home / 42,918.80-64,386.84-14,839.92

Finding the Fourth Proportional to 42,918.80, 64,386.84 and 14,839.92

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Solution

The fourth proportional to 42,918.80, 64,386.84 and 14,839.92 is: 22,262.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,918.80 : 64,386.84 = 14,839.92 : x
  2. Step 2: Convert to fraction form
    42,918.80/64,386.84 = 14,839.92/x
  3. Step 3: Cross multiply
    42,918.80x = 64,386.84 × 14,839.92
  4. Step 4: Simplify right side
    42,918.80x = 955,495,554.65
  5. Step 5: Solve for x
    x = 955,495,554.65/42,918.80
  6. Step 6: Final answer
    x = 22,262.87

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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.