Home / 40,322.76-55,563.35-31,192.66

Finding the Fourth Proportional to 40,322.76, 55,563.35 and 31,192.66

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Solution

The fourth proportional to 40,322.76, 55,563.35 and 31,192.66 is: 42,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,322.76 : 55,563.35 = 31,192.66 : x
  2. Step 2: Convert to fraction form
    40,322.76/55,563.35 = 31,192.66/x
  3. Step 3: Cross multiply
    40,322.76x = 55,563.35 × 31,192.66
  4. Step 4: Simplify right side
    40,322.76x = 1,733,168,642.37
  5. Step 5: Solve for x
    x = 1,733,168,642.37/40,322.76
  6. Step 6: Final answer
    x = 42,982.39

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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.