Home / 18,438.52-25,444.88-10,055.02

Finding the Fourth Proportional to 18,438.52, 25,444.88 and 10,055.02

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Solution

The fourth proportional to 18,438.52, 25,444.88 and 10,055.02 is: 13,875.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438.52 : 25,444.88 = 10,055.02 : x
  2. Step 2: Convert to fraction form
    18,438.52/25,444.88 = 10,055.02/x
  3. Step 3: Cross multiply
    18,438.52x = 25,444.88 × 10,055.02
  4. Step 4: Simplify right side
    18,438.52x = 255,848,777.30
  5. Step 5: Solve for x
    x = 255,848,777.30/18,438.52
  6. Step 6: Final answer
    x = 13,875.78

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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.