Home / 21,582.07-29,786.10-12,152.47

Finding the Fourth Proportional to 21,582.07, 29,786.10 and 12,152.47

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Solution

The fourth proportional to 21,582.07, 29,786.10 and 12,152.47 is: 16,772.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,582.07 : 29,786.10 = 12,152.47 : x
  2. Step 2: Convert to fraction form
    21,582.07/29,786.10 = 12,152.47/x
  3. Step 3: Cross multiply
    21,582.07x = 29,786.10 × 12,152.47
  4. Step 4: Simplify right side
    21,582.07x = 361,974,686.67
  5. Step 5: Solve for x
    x = 361,974,686.67/21,582.07
  6. Step 6: Final answer
    x = 16,772.01

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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.