Home / 30,905.28-42,617.88-26,443.80

Finding the Fourth Proportional to 30,905.28, 42,617.88 and 26,443.80

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Solution

The fourth proportional to 30,905.28, 42,617.88 and 26,443.80 is: 36,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.28 : 42,617.88 = 26,443.80 : x
  2. Step 2: Convert to fraction form
    30,905.28/42,617.88 = 26,443.80/x
  3. Step 3: Cross multiply
    30,905.28x = 42,617.88 × 26,443.80
  4. Step 4: Simplify right side
    30,905.28x = 1,126,978,695.14
  5. Step 5: Solve for x
    x = 1,126,978,695.14/30,905.28
  6. Step 6: Final answer
    x = 36,465.57

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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.