Home / 42,881.17-64,360.98-21,835.75

Finding the Fourth Proportional to 42,881.17, 64,360.98 and 21,835.75

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Solution

The fourth proportional to 42,881.17, 64,360.98 and 21,835.75 is: 32,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,881.17 : 64,360.98 = 21,835.75 : x
  2. Step 2: Convert to fraction form
    42,881.17/64,360.98 = 21,835.75/x
  3. Step 3: Cross multiply
    42,881.17x = 64,360.98 × 21,835.75
  4. Step 4: Simplify right side
    42,881.17x = 1,405,370,269.04
  5. Step 5: Solve for x
    x = 1,405,370,269.04/42,881.17
  6. Step 6: Final answer
    x = 32,773.60

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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.