Home / 43,828.95-65,750.76-21,638.19

Finding the Fourth Proportional to 43,828.95, 65,750.76 and 21,638.19

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Solution

The fourth proportional to 43,828.95, 65,750.76 and 21,638.19 is: 32,460.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,828.95 : 65,750.76 = 21,638.19 : x
  2. Step 2: Convert to fraction form
    43,828.95/65,750.76 = 21,638.19/x
  3. Step 3: Cross multiply
    43,828.95x = 65,750.76 × 21,638.19
  4. Step 4: Simplify right side
    43,828.95x = 1,422,727,437.52
  5. Step 5: Solve for x
    x = 1,422,727,437.52/43,828.95
  6. Step 6: Final answer
    x = 32,460.91

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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.