Home / 21,569.36-32,331-15,394.64

Finding the Fourth Proportional to 21,569.36, 32,331 and 15,394.64

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Solution

The fourth proportional to 21,569.36, 32,331 and 15,394.64 is: 23,075.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.36 : 32,331 = 15,394.64 : x
  2. Step 2: Convert to fraction form
    21,569.36/32,331 = 15,394.64/x
  3. Step 3: Cross multiply
    21,569.36x = 32,331 × 15,394.64
  4. Step 4: Simplify right side
    21,569.36x = 497,724,105.84
  5. Step 5: Solve for x
    x = 497,724,105.84/21,569.36
  6. Step 6: Final answer
    x = 23,075.52

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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.