Home / 28,061.91-38,729.12-19,558.53

Finding the Fourth Proportional to 28,061.91, 38,729.12 and 19,558.53

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Solution

The fourth proportional to 28,061.91, 38,729.12 and 19,558.53 is: 26,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,061.91 : 38,729.12 = 19,558.53 : x
  2. Step 2: Convert to fraction form
    28,061.91/38,729.12 = 19,558.53/x
  3. Step 3: Cross multiply
    28,061.91x = 38,729.12 × 19,558.53
  4. Step 4: Simplify right side
    28,061.91x = 757,484,655.39
  5. Step 5: Solve for x
    x = 757,484,655.39/28,061.91
  6. Step 6: Final answer
    x = 26,993.34

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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.