Home / 21,585.10-29,789.57-12,632.07

Finding the Fourth Proportional to 21,585.10, 29,789.57 and 12,632.07

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Solution

The fourth proportional to 21,585.10, 29,789.57 and 12,632.07 is: 17,433.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.10 : 29,789.57 = 12,632.07 : x
  2. Step 2: Convert to fraction form
    21,585.10/29,789.57 = 12,632.07/x
  3. Step 3: Cross multiply
    21,585.10x = 29,789.57 × 12,632.07
  4. Step 4: Simplify right side
    21,585.10x = 376,303,827.46
  5. Step 5: Solve for x
    x = 376,303,827.46/21,585.10
  6. Step 6: Final answer
    x = 17,433.50

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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.