Home / 22,577.94-31,140.45-19,778.58

Finding the Fourth Proportional to 22,577.94, 31,140.45 and 19,778.58

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Solution

The fourth proportional to 22,577.94, 31,140.45 and 19,778.58 is: 27,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,577.94 : 31,140.45 = 19,778.58 : x
  2. Step 2: Convert to fraction form
    22,577.94/31,140.45 = 19,778.58/x
  3. Step 3: Cross multiply
    22,577.94x = 31,140.45 × 19,778.58
  4. Step 4: Simplify right side
    22,577.94x = 615,913,881.56
  5. Step 5: Solve for x
    x = 615,913,881.56/22,577.94
  6. Step 6: Final answer
    x = 27,279.45

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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.