Home / 25,564.04-38,295-20,307.95

Finding the Fourth Proportional to 25,564.04, 38,295 and 20,307.95

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Solution

The fourth proportional to 25,564.04, 38,295 and 20,307.95 is: 30,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,564.04 : 38,295 = 20,307.95 : x
  2. Step 2: Convert to fraction form
    25,564.04/38,295 = 20,307.95/x
  3. Step 3: Cross multiply
    25,564.04x = 38,295 × 20,307.95
  4. Step 4: Simplify right side
    25,564.04x = 777,692,753.78
  5. Step 5: Solve for x
    x = 777,692,753.78/25,564.04
  6. Step 6: Final answer
    x = 30,421.36

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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.