Home / 21,877.04-32,815.20-14,135.60

Finding the Fourth Proportional to 21,877.04, 32,815.20 and 14,135.60

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Solution

The fourth proportional to 21,877.04, 32,815.20 and 14,135.60 is: 21,203.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,877.04 : 32,815.20 = 14,135.60 : x
  2. Step 2: Convert to fraction form
    21,877.04/32,815.20 = 14,135.60/x
  3. Step 3: Cross multiply
    21,877.04x = 32,815.20 × 14,135.60
  4. Step 4: Simplify right side
    21,877.04x = 463,862,541.12
  5. Step 5: Solve for x
    x = 463,862,541.12/21,877.04
  6. Step 6: Final answer
    x = 21,203.17

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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.