Home / 21,967.30-30,302.49-13,898.46

Finding the Fourth Proportional to 21,967.30, 30,302.49 and 13,898.46

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Solution

The fourth proportional to 21,967.30, 30,302.49 and 13,898.46 is: 19,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.30 : 30,302.49 = 13,898.46 : x
  2. Step 2: Convert to fraction form
    21,967.30/30,302.49 = 13,898.46/x
  3. Step 3: Cross multiply
    21,967.30x = 30,302.49 × 13,898.46
  4. Step 4: Simplify right side
    21,967.30x = 421,157,945.17
  5. Step 5: Solve for x
    x = 421,157,945.17/21,967.30
  6. Step 6: Final answer
    x = 19,172.04

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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.