Home / 19,138.32-28,566.98-17,729.28

Finding the Fourth Proportional to 19,138.32, 28,566.98 and 17,729.28

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Solution

The fourth proportional to 19,138.32, 28,566.98 and 17,729.28 is: 26,463.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,138.32 : 28,566.98 = 17,729.28 : x
  2. Step 2: Convert to fraction form
    19,138.32/28,566.98 = 17,729.28/x
  3. Step 3: Cross multiply
    19,138.32x = 28,566.98 × 17,729.28
  4. Step 4: Simplify right side
    19,138.32x = 506,471,898.53
  5. Step 5: Solve for x
    x = 506,471,898.53/19,138.32
  6. Step 6: Final answer
    x = 26,463.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.