Home / 55,947.09-83,920.64-20,889.48

Finding the Fourth Proportional to 55,947.09, 83,920.64 and 20,889.48

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Solution

The fourth proportional to 55,947.09, 83,920.64 and 20,889.48 is: 31,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,947.09 : 83,920.64 = 20,889.48 : x
  2. Step 2: Convert to fraction form
    55,947.09/83,920.64 = 20,889.48/x
  3. Step 3: Cross multiply
    55,947.09x = 83,920.64 × 20,889.48
  4. Step 4: Simplify right side
    55,947.09x = 1,753,058,426.42
  5. Step 5: Solve for x
    x = 1,753,058,426.42/55,947.09
  6. Step 6: Final answer
    x = 31,334.22

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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.