Home / 19,530.20-29,256.12-8,985.53

Finding the Fourth Proportional to 19,530.20, 29,256.12 and 8,985.53

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Solution

The fourth proportional to 19,530.20, 29,256.12 and 8,985.53 is: 13,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.20 : 29,256.12 = 8,985.53 : x
  2. Step 2: Convert to fraction form
    19,530.20/29,256.12 = 8,985.53/x
  3. Step 3: Cross multiply
    19,530.20x = 29,256.12 × 8,985.53
  4. Step 4: Simplify right side
    19,530.20x = 262,881,817.08
  5. Step 5: Solve for x
    x = 262,881,817.08/19,530.20
  6. Step 6: Final answer
    x = 13,460.27

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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.