Home / 21,505.35-32,267.13-10,420.29

Finding the Fourth Proportional to 21,505.35, 32,267.13 and 10,420.29

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Solution

The fourth proportional to 21,505.35, 32,267.13 and 10,420.29 is: 15,634.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,505.35 : 32,267.13 = 10,420.29 : x
  2. Step 2: Convert to fraction form
    21,505.35/32,267.13 = 10,420.29/x
  3. Step 3: Cross multiply
    21,505.35x = 32,267.13 × 10,420.29
  4. Step 4: Simplify right side
    21,505.35x = 336,232,852.07
  5. Step 5: Solve for x
    x = 336,232,852.07/21,505.35
  6. Step 6: Final answer
    x = 15,634.85

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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.