Home / 21,756.54-32,635.35-7,715.94

Finding the Fourth Proportional to 21,756.54, 32,635.35 and 7,715.94

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Solution

The fourth proportional to 21,756.54, 32,635.35 and 7,715.94 is: 11,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.54 : 32,635.35 = 7,715.94 : x
  2. Step 2: Convert to fraction form
    21,756.54/32,635.35 = 7,715.94/x
  3. Step 3: Cross multiply
    21,756.54x = 32,635.35 × 7,715.94
  4. Step 4: Simplify right side
    21,756.54x = 251,812,402.48
  5. Step 5: Solve for x
    x = 251,812,402.48/21,756.54
  6. Step 6: Final answer
    x = 11,574.10

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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.