Home / 38,438.28-57,630.66-19,681.92

Finding the Fourth Proportional to 38,438.28, 57,630.66 and 19,681.92

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Solution

The fourth proportional to 38,438.28, 57,630.66 and 19,681.92 is: 29,509.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.28 : 57,630.66 = 19,681.92 : x
  2. Step 2: Convert to fraction form
    38,438.28/57,630.66 = 19,681.92/x
  3. Step 3: Cross multiply
    38,438.28x = 57,630.66 × 19,681.92
  4. Step 4: Simplify right side
    38,438.28x = 1,134,282,039.67
  5. Step 5: Solve for x
    x = 1,134,282,039.67/38,438.28
  6. Step 6: Final answer
    x = 29,509.18

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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.