Home / 38,935.91-53,730.92-21,941.89

Finding the Fourth Proportional to 38,935.91, 53,730.92 and 21,941.89

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Solution

The fourth proportional to 38,935.91, 53,730.92 and 21,941.89 is: 30,279.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,935.91 : 53,730.92 = 21,941.89 : x
  2. Step 2: Convert to fraction form
    38,935.91/53,730.92 = 21,941.89/x
  3. Step 3: Cross multiply
    38,935.91x = 53,730.92 × 21,941.89
  4. Step 4: Simplify right side
    38,935.91x = 1,178,957,826.53
  5. Step 5: Solve for x
    x = 1,178,957,826.53/38,935.91
  6. Step 6: Final answer
    x = 30,279.45

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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.