Home / 21,916.80-32,810.40-14,529.60

Finding the Fourth Proportional to 21,916.80, 32,810.40 and 14,529.60

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Solution

The fourth proportional to 21,916.80, 32,810.40 and 14,529.60 is: 21,751.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,916.80 : 32,810.40 = 14,529.60 : x
  2. Step 2: Convert to fraction form
    21,916.80/32,810.40 = 14,529.60/x
  3. Step 3: Cross multiply
    21,916.80x = 32,810.40 × 14,529.60
  4. Step 4: Simplify right side
    21,916.80x = 476,721,987.84
  5. Step 5: Solve for x
    x = 476,721,987.84/21,916.80
  6. Step 6: Final answer
    x = 21,751.44

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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.