Home / 30,149.60-45,211.44-9,374.72

Finding the Fourth Proportional to 30,149.60, 45,211.44 and 9,374.72

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Solution

The fourth proportional to 30,149.60, 45,211.44 and 9,374.72 is: 14,058.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.60 : 45,211.44 = 9,374.72 : x
  2. Step 2: Convert to fraction form
    30,149.60/45,211.44 = 9,374.72/x
  3. Step 3: Cross multiply
    30,149.60x = 45,211.44 × 9,374.72
  4. Step 4: Simplify right side
    30,149.60x = 423,844,590.80
  5. Step 5: Solve for x
    x = 423,844,590.80/30,149.60
  6. Step 6: Final answer
    x = 14,058.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.