Home / 43,837.20-65,712.60-21,632.40

Finding the Fourth Proportional to 43,837.20, 65,712.60 and 21,632.40

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Solution

The fourth proportional to 43,837.20, 65,712.60 and 21,632.40 is: 32,427.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,837.20 : 65,712.60 = 21,632.40 : x
  2. Step 2: Convert to fraction form
    43,837.20/65,712.60 = 21,632.40/x
  3. Step 3: Cross multiply
    43,837.20x = 65,712.60 × 21,632.40
  4. Step 4: Simplify right side
    43,837.20x = 1,421,521,248.24
  5. Step 5: Solve for x
    x = 1,421,521,248.24/43,837.20
  6. Step 6: Final answer
    x = 32,427.28

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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.