Home / 19,929.58-27,503.01-10,977.12

Finding the Fourth Proportional to 19,929.58, 27,503.01 and 10,977.12

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Solution

The fourth proportional to 19,929.58, 27,503.01 and 10,977.12 is: 15,148.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.58 : 27,503.01 = 10,977.12 : x
  2. Step 2: Convert to fraction form
    19,929.58/27,503.01 = 10,977.12/x
  3. Step 3: Cross multiply
    19,929.58x = 27,503.01 × 10,977.12
  4. Step 4: Simplify right side
    19,929.58x = 301,903,724.27
  5. Step 5: Solve for x
    x = 301,903,724.27/19,929.58
  6. Step 6: Final answer
    x = 15,148.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.