Home / 47,613.08-65,676.20-30,639.39

Finding the Fourth Proportional to 47,613.08, 65,676.20 and 30,639.39

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Solution

The fourth proportional to 47,613.08, 65,676.20 and 30,639.39 is: 42,263.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,613.08 : 65,676.20 = 30,639.39 : x
  2. Step 2: Convert to fraction form
    47,613.08/65,676.20 = 30,639.39/x
  3. Step 3: Cross multiply
    47,613.08x = 65,676.20 × 30,639.39
  4. Step 4: Simplify right side
    47,613.08x = 2,012,278,552.32
  5. Step 5: Solve for x
    x = 2,012,278,552.32/47,613.08
  6. Step 6: Final answer
    x = 42,263.15

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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.