Home / 21,778.47-30,063.49-14,714.46

Finding the Fourth Proportional to 21,778.47, 30,063.49 and 14,714.46

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Solution

The fourth proportional to 21,778.47, 30,063.49 and 14,714.46 is: 20,312.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.47 : 30,063.49 = 14,714.46 : x
  2. Step 2: Convert to fraction form
    21,778.47/30,063.49 = 14,714.46/x
  3. Step 3: Cross multiply
    21,778.47x = 30,063.49 × 14,714.46
  4. Step 4: Simplify right side
    21,778.47x = 442,368,021.07
  5. Step 5: Solve for x
    x = 442,368,021.07/21,778.47
  6. Step 6: Final answer
    x = 20,312.17

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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.