Home / 30,622.88-42,270.72-18,058.16

Finding the Fourth Proportional to 30,622.88, 42,270.72 and 18,058.16

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Solution

The fourth proportional to 30,622.88, 42,270.72 and 18,058.16 is: 24,926.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,622.88 : 42,270.72 = 18,058.16 : x
  2. Step 2: Convert to fraction form
    30,622.88/42,270.72 = 18,058.16/x
  3. Step 3: Cross multiply
    30,622.88x = 42,270.72 × 18,058.16
  4. Step 4: Simplify right side
    30,622.88x = 763,331,425.08
  5. Step 5: Solve for x
    x = 763,331,425.08/30,622.88
  6. Step 6: Final answer
    x = 24,926.83

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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.