Home / 19,508.40-29,272.80-8,981.60

Finding the Fourth Proportional to 19,508.40, 29,272.80 and 8,981.60

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Solution

The fourth proportional to 19,508.40, 29,272.80 and 8,981.60 is: 13,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,508.40 : 29,272.80 = 8,981.60 : x
  2. Step 2: Convert to fraction form
    19,508.40/29,272.80 = 8,981.60/x
  3. Step 3: Cross multiply
    19,508.40x = 29,272.80 × 8,981.60
  4. Step 4: Simplify right side
    19,508.40x = 262,916,580.48
  5. Step 5: Solve for x
    x = 262,916,580.48/19,508.40
  6. Step 6: Final answer
    x = 13,477.10

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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.