Home / 21,897.48-30,228.18-15,974.34

Finding the Fourth Proportional to 21,897.48, 30,228.18 and 15,974.34

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Solution

The fourth proportional to 21,897.48, 30,228.18 and 15,974.34 is: 22,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,897.48 : 30,228.18 = 15,974.34 : x
  2. Step 2: Convert to fraction form
    21,897.48/30,228.18 = 15,974.34/x
  3. Step 3: Cross multiply
    21,897.48x = 30,228.18 × 15,974.34
  4. Step 4: Simplify right side
    21,897.48x = 482,875,224.90
  5. Step 5: Solve for x
    x = 482,875,224.90/21,897.48
  6. Step 6: Final answer
    x = 22,051.63

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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.