Home / 35,947.08-49,607.40-20,840.80

Finding the Fourth Proportional to 35,947.08, 49,607.40 and 20,840.80

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Solution

The fourth proportional to 35,947.08, 49,607.40 and 20,840.80 is: 28,760.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,947.08 : 49,607.40 = 20,840.80 : x
  2. Step 2: Convert to fraction form
    35,947.08/49,607.40 = 20,840.80/x
  3. Step 3: Cross multiply
    35,947.08x = 49,607.40 × 20,840.80
  4. Step 4: Simplify right side
    35,947.08x = 1,033,857,901.92
  5. Step 5: Solve for x
    x = 1,033,857,901.92/35,947.08
  6. Step 6: Final answer
    x = 28,760.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.