Home / 30,518.62-45,740.97-12,951.55

Finding the Fourth Proportional to 30,518.62, 45,740.97 and 12,951.55

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Solution

The fourth proportional to 30,518.62, 45,740.97 and 12,951.55 is: 19,411.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.62 : 45,740.97 = 12,951.55 : x
  2. Step 2: Convert to fraction form
    30,518.62/45,740.97 = 12,951.55/x
  3. Step 3: Cross multiply
    30,518.62x = 45,740.97 × 12,951.55
  4. Step 4: Simplify right side
    30,518.62x = 592,416,460.00
  5. Step 5: Solve for x
    x = 592,416,460.00/30,518.62
  6. Step 6: Final answer
    x = 19,411.64

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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.