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Finding the Fourth Proportional to 28,681, 39,562.62 and 18,052.18

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Solution

The fourth proportional to 28,681, 39,562.62 and 18,052.18 is: 24,901.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,681 : 39,562.62 = 18,052.18 : x
  2. Step 2: Convert to fraction form
    28,681/39,562.62 = 18,052.18/x
  3. Step 3: Cross multiply
    28,681x = 39,562.62 × 18,052.18
  4. Step 4: Simplify right side
    28,681x = 714,191,537.51
  5. Step 5: Solve for x
    x = 714,191,537.51/28,681
  6. Step 6: Final answer
    x = 24,901.21

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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.