Home / 30,523.24-42,128.58-17,955.16

Finding the Fourth Proportional to 30,523.24, 42,128.58 and 17,955.16

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Solution

The fourth proportional to 30,523.24, 42,128.58 and 17,955.16 is: 24,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,523.24 : 42,128.58 = 17,955.16 : x
  2. Step 2: Convert to fraction form
    30,523.24/42,128.58 = 17,955.16/x
  3. Step 3: Cross multiply
    30,523.24x = 42,128.58 × 17,955.16
  4. Step 4: Simplify right side
    30,523.24x = 756,425,394.47
  5. Step 5: Solve for x
    x = 756,425,394.47/30,523.24
  6. Step 6: Final answer
    x = 24,781.95

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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.