Home / 22,362.48-31,018.05-21,564.63

Finding the Fourth Proportional to 22,362.48, 31,018.05 and 21,564.63

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Solution

The fourth proportional to 22,362.48, 31,018.05 and 21,564.63 is: 29,911.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,362.48 : 31,018.05 = 21,564.63 : x
  2. Step 2: Convert to fraction form
    22,362.48/31,018.05 = 21,564.63/x
  3. Step 3: Cross multiply
    22,362.48x = 31,018.05 × 21,564.63
  4. Step 4: Simplify right side
    22,362.48x = 668,892,771.57
  5. Step 5: Solve for x
    x = 668,892,771.57/22,362.48
  6. Step 6: Final answer
    x = 29,911.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.