Home / 42,837.94-64,266.48-20,669.92

Finding the Fourth Proportional to 42,837.94, 64,266.48 and 20,669.92

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Solution

The fourth proportional to 42,837.94, 64,266.48 and 20,669.92 is: 31,009.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,837.94 : 64,266.48 = 20,669.92 : x
  2. Step 2: Convert to fraction form
    42,837.94/64,266.48 = 20,669.92/x
  3. Step 3: Cross multiply
    42,837.94x = 64,266.48 × 20,669.92
  4. Step 4: Simplify right side
    42,837.94x = 1,328,383,000.28
  5. Step 5: Solve for x
    x = 1,328,383,000.28/42,837.94
  6. Step 6: Final answer
    x = 31,009.50

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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.