Home / 30,523.74-42,129.27-17,955.66

Finding the Fourth Proportional to 30,523.74, 42,129.27 and 17,955.66

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Solution

The fourth proportional to 30,523.74, 42,129.27 and 17,955.66 is: 24,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,523.74 : 42,129.27 = 17,955.66 : x
  2. Step 2: Convert to fraction form
    30,523.74/42,129.27 = 17,955.66/x
  3. Step 3: Cross multiply
    30,523.74x = 42,129.27 × 17,955.66
  4. Step 4: Simplify right side
    30,523.74x = 756,458,848.17
  5. Step 5: Solve for x
    x = 756,458,848.17/30,523.74
  6. Step 6: Final answer
    x = 24,782.64

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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.