Home / 38,420.40-57,637.56-18,698.96

Finding the Fourth Proportional to 38,420.40, 57,637.56 and 18,698.96

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Solution

The fourth proportional to 38,420.40, 57,637.56 and 18,698.96 is: 28,051.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420.40 : 57,637.56 = 18,698.96 : x
  2. Step 2: Convert to fraction form
    38,420.40/57,637.56 = 18,698.96/x
  3. Step 3: Cross multiply
    38,420.40x = 57,637.56 × 18,698.96
  4. Step 4: Simplify right side
    38,420.40x = 1,077,762,428.94
  5. Step 5: Solve for x
    x = 1,077,762,428.94/38,420.40
  6. Step 6: Final answer
    x = 28,051.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.