Home / 21,911.44-30,225.54-14,359

Finding the Fourth Proportional to 21,911.44, 30,225.54 and 14,359

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Solution

The fourth proportional to 21,911.44, 30,225.54 and 14,359 is: 19,807.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,911.44 : 30,225.54 = 14,359 : x
  2. Step 2: Convert to fraction form
    21,911.44/30,225.54 = 14,359/x
  3. Step 3: Cross multiply
    21,911.44x = 30,225.54 × 14,359
  4. Step 4: Simplify right side
    21,911.44x = 434,008,528.86
  5. Step 5: Solve for x
    x = 434,008,528.86/21,911.44
  6. Step 6: Final answer
    x = 19,807.39

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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.