Home / 18,420.46-25,420.24-10,036.96

Finding the Fourth Proportional to 18,420.46, 25,420.24 and 10,036.96

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Solution

The fourth proportional to 18,420.46, 25,420.24 and 10,036.96 is: 13,851.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,420.46 : 25,420.24 = 10,036.96 : x
  2. Step 2: Convert to fraction form
    18,420.46/25,420.24 = 10,036.96/x
  3. Step 3: Cross multiply
    18,420.46x = 25,420.24 × 10,036.96
  4. Step 4: Simplify right side
    18,420.46x = 255,141,932.07
  5. Step 5: Solve for x
    x = 255,141,932.07/18,420.46
  6. Step 6: Final answer
    x = 13,851.01

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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.