Home / 21,441.84-32,143.20-15,888.48

Finding the Fourth Proportional to 21,441.84, 32,143.20 and 15,888.48

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Solution

The fourth proportional to 21,441.84, 32,143.20 and 15,888.48 is: 23,818.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,441.84 : 32,143.20 = 15,888.48 : x
  2. Step 2: Convert to fraction form
    21,441.84/32,143.20 = 15,888.48/x
  3. Step 3: Cross multiply
    21,441.84x = 32,143.20 × 15,888.48
  4. Step 4: Simplify right side
    21,441.84x = 510,706,590.34
  5. Step 5: Solve for x
    x = 510,706,590.34/21,441.84
  6. Step 6: Final answer
    x = 23,818.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.