Home / 21,875.69-32,814-7,836.63

Finding the Fourth Proportional to 21,875.69, 32,814 and 7,836.63

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Solution

The fourth proportional to 21,875.69, 32,814 and 7,836.63 is: 11,755.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,875.69 : 32,814 = 7,836.63 : x
  2. Step 2: Convert to fraction form
    21,875.69/32,814 = 7,836.63/x
  3. Step 3: Cross multiply
    21,875.69x = 32,814 × 7,836.63
  4. Step 4: Simplify right side
    21,875.69x = 257,151,176.82
  5. Step 5: Solve for x
    x = 257,151,176.82/21,875.69
  6. Step 6: Final answer
    x = 11,755.11

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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.