Home / 42,910.70-64,262.16-21,795.21

Finding the Fourth Proportional to 42,910.70, 64,262.16 and 21,795.21

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Solution

The fourth proportional to 42,910.70, 64,262.16 and 21,795.21 is: 32,640.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,910.70 : 64,262.16 = 21,795.21 : x
  2. Step 2: Convert to fraction form
    42,910.70/64,262.16 = 21,795.21/x
  3. Step 3: Cross multiply
    42,910.70x = 64,262.16 × 21,795.21
  4. Step 4: Simplify right side
    42,910.70x = 1,400,607,272.25
  5. Step 5: Solve for x
    x = 1,400,607,272.25/42,910.70
  6. Step 6: Final answer
    x = 32,640.05

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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.