Home / 19,929.90-27,503.44-10,977.71

Finding the Fourth Proportional to 19,929.90, 27,503.44 and 10,977.71

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Solution

The fourth proportional to 19,929.90, 27,503.44 and 10,977.71 is: 15,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.90 : 27,503.44 = 10,977.71 : x
  2. Step 2: Convert to fraction form
    19,929.90/27,503.44 = 10,977.71/x
  3. Step 3: Cross multiply
    19,929.90x = 27,503.44 × 10,977.71
  4. Step 4: Simplify right side
    19,929.90x = 301,924,788.32
  5. Step 5: Solve for x
    x = 301,924,788.32/19,929.90
  6. Step 6: Final answer
    x = 15,149.34

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1.5x scale

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.