Home / 22,114.28-30,465.80-15,388.34

Finding the Fourth Proportional to 22,114.28, 30,465.80 and 15,388.34

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Solution

The fourth proportional to 22,114.28, 30,465.80 and 15,388.34 is: 21,199.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,114.28 : 30,465.80 = 15,388.34 : x
  2. Step 2: Convert to fraction form
    22,114.28/30,465.80 = 15,388.34/x
  3. Step 3: Cross multiply
    22,114.28x = 30,465.80 × 15,388.34
  4. Step 4: Simplify right side
    22,114.28x = 468,818,088.77
  5. Step 5: Solve for x
    x = 468,818,088.77/22,114.28
  6. Step 6: Final answer
    x = 21,199.79

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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.