Home / 30,726.42-42,313.23-26,691.41

Finding the Fourth Proportional to 30,726.42, 42,313.23 and 26,691.41

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Solution

The fourth proportional to 30,726.42, 42,313.23 and 26,691.41 is: 36,756.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,726.42 : 42,313.23 = 26,691.41 : x
  2. Step 2: Convert to fraction form
    30,726.42/42,313.23 = 26,691.41/x
  3. Step 3: Cross multiply
    30,726.42x = 42,313.23 × 26,691.41
  4. Step 4: Simplify right side
    30,726.42x = 1,129,399,558.79
  5. Step 5: Solve for x
    x = 1,129,399,558.79/30,726.42
  6. Step 6: Final answer
    x = 36,756.63

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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.