Home / 30,522.60-42,126.30-18,590.58

Finding the Fourth Proportional to 30,522.60, 42,126.30 and 18,590.58

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Solution

The fourth proportional to 30,522.60, 42,126.30 and 18,590.58 is: 25,658.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,522.60 : 42,126.30 = 18,590.58 : x
  2. Step 2: Convert to fraction form
    30,522.60/42,126.30 = 18,590.58/x
  3. Step 3: Cross multiply
    30,522.60x = 42,126.30 × 18,590.58
  4. Step 4: Simplify right side
    30,522.60x = 783,152,350.25
  5. Step 5: Solve for x
    x = 783,152,350.25/30,522.60
  6. Step 6: Final answer
    x = 25,658.11

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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.