Home / 21,632.18-29,849.87-12,555.45

Finding the Fourth Proportional to 21,632.18, 29,849.87 and 12,555.45

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Solution

The fourth proportional to 21,632.18, 29,849.87 and 12,555.45 is: 17,325.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.18 : 29,849.87 = 12,555.45 : x
  2. Step 2: Convert to fraction form
    21,632.18/29,849.87 = 12,555.45/x
  3. Step 3: Cross multiply
    21,632.18x = 29,849.87 × 12,555.45
  4. Step 4: Simplify right side
    21,632.18x = 374,778,427.10
  5. Step 5: Solve for x
    x = 374,778,427.10/21,632.18
  6. Step 6: Final answer
    x = 17,325.04

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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.