Home / 55,996.20-84,026.70-20,939.40

Finding the Fourth Proportional to 55,996.20, 84,026.70 and 20,939.40

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Solution

The fourth proportional to 55,996.20, 84,026.70 and 20,939.40 is: 31,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,996.20 : 84,026.70 = 20,939.40 : x
  2. Step 2: Convert to fraction form
    55,996.20/84,026.70 = 20,939.40/x
  3. Step 3: Cross multiply
    55,996.20x = 84,026.70 × 20,939.40
  4. Step 4: Simplify right side
    55,996.20x = 1,759,468,681.98
  5. Step 5: Solve for x
    x = 1,759,468,681.98/55,996.20
  6. Step 6: Final answer
    x = 31,421.22

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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.