Home / 40,256.80-55,606.67-30,638.25

Finding the Fourth Proportional to 40,256.80, 55,606.67 and 30,638.25

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Solution

The fourth proportional to 40,256.80, 55,606.67 and 30,638.25 is: 42,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,256.80 : 55,606.67 = 30,638.25 : x
  2. Step 2: Convert to fraction form
    40,256.80/55,606.67 = 30,638.25/x
  3. Step 3: Cross multiply
    40,256.80x = 55,606.67 × 30,638.25
  4. Step 4: Simplify right side
    40,256.80x = 1,703,691,018.83
  5. Step 5: Solve for x
    x = 1,703,691,018.83/40,256.80
  6. Step 6: Final answer
    x = 42,320.58

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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.