Home / 21,898.48-30,229.56-15,975.34

Finding the Fourth Proportional to 21,898.48, 30,229.56 and 15,975.34

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Solution

The fourth proportional to 21,898.48, 30,229.56 and 15,975.34 is: 22,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,898.48 : 30,229.56 = 15,975.34 : x
  2. Step 2: Convert to fraction form
    21,898.48/30,229.56 = 15,975.34/x
  3. Step 3: Cross multiply
    21,898.48x = 30,229.56 × 15,975.34
  4. Step 4: Simplify right side
    21,898.48x = 482,927,499.05
  5. Step 5: Solve for x
    x = 482,927,499.05/21,898.48
  6. Step 6: Final answer
    x = 22,053.01

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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.