Home / 21,946.48-30,225.36-18,961.36

Finding the Fourth Proportional to 21,946.48, 30,225.36 and 18,961.36

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Solution

The fourth proportional to 21,946.48, 30,225.36 and 18,961.36 is: 26,114.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,946.48 : 30,225.36 = 18,961.36 : x
  2. Step 2: Convert to fraction form
    21,946.48/30,225.36 = 18,961.36/x
  3. Step 3: Cross multiply
    21,946.48x = 30,225.36 × 18,961.36
  4. Step 4: Simplify right side
    21,946.48x = 573,113,932.09
  5. Step 5: Solve for x
    x = 573,113,932.09/21,946.48
  6. Step 6: Final answer
    x = 26,114.16

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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.