Home / 19,530.20-26,951.70-10,577.78

Finding the Fourth Proportional to 19,530.20, 26,951.70 and 10,577.78

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Solution

The fourth proportional to 19,530.20, 26,951.70 and 10,577.78 is: 14,597.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,530.20 : 26,951.70 = 10,577.78 : x
  2. Step 2: Convert to fraction form
    19,530.20/26,951.70 = 10,577.78/x
  3. Step 3: Cross multiply
    19,530.20x = 26,951.70 × 10,577.78
  4. Step 4: Simplify right side
    19,530.20x = 285,089,159.20
  5. Step 5: Solve for x
    x = 285,089,159.20/19,530.20
  6. Step 6: Final answer
    x = 14,597.35

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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.