Home / 14,531.84-20,040-9,217.20

Finding the Fourth Proportional to 14,531.84, 20,040 and 9,217.20

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Solution

The fourth proportional to 14,531.84, 20,040 and 9,217.20 is: 12,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,531.84 : 20,040 = 9,217.20 : x
  2. Step 2: Convert to fraction form
    14,531.84/20,040 = 9,217.20/x
  3. Step 3: Cross multiply
    14,531.84x = 20,040 × 9,217.20
  4. Step 4: Simplify right side
    14,531.84x = 184,712,688
  5. Step 5: Solve for x
    x = 184,712,688/14,531.84
  6. Step 6: Final answer
    x = 12,710.89

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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.