Home / 21,906.19-30,220-14,349.25

Finding the Fourth Proportional to 21,906.19, 30,220 and 14,349.25

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Solution

The fourth proportional to 21,906.19, 30,220 and 14,349.25 is: 19,795.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,906.19 : 30,220 = 14,349.25 : x
  2. Step 2: Convert to fraction form
    21,906.19/30,220 = 14,349.25/x
  3. Step 3: Cross multiply
    21,906.19x = 30,220 × 14,349.25
  4. Step 4: Simplify right side
    21,906.19x = 433,634,335
  5. Step 5: Solve for x
    x = 433,634,335/21,906.19
  6. Step 6: Final answer
    x = 19,795.06

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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.