Home / 19,985.84-29,997.20-10,132

Finding the Fourth Proportional to 19,985.84, 29,997.20 and 10,132

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Solution

The fourth proportional to 19,985.84, 29,997.20 and 10,132 is: 15,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.84 : 29,997.20 = 10,132 : x
  2. Step 2: Convert to fraction form
    19,985.84/29,997.20 = 10,132/x
  3. Step 3: Cross multiply
    19,985.84x = 29,997.20 × 10,132
  4. Step 4: Simplify right side
    19,985.84x = 303,931,630.40
  5. Step 5: Solve for x
    x = 303,931,630.40/19,985.84
  6. Step 6: Final answer
    x = 15,207.35

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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.