Home / 47,486.91-65,513.52-30,486.63

Finding the Fourth Proportional to 47,486.91, 65,513.52 and 30,486.63

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Solution

The fourth proportional to 47,486.91, 65,513.52 and 30,486.63 is: 42,059.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,486.91 : 65,513.52 = 30,486.63 : x
  2. Step 2: Convert to fraction form
    47,486.91/65,513.52 = 30,486.63/x
  3. Step 3: Cross multiply
    47,486.91x = 65,513.52 × 30,486.63
  4. Step 4: Simplify right side
    47,486.91x = 1,997,286,444.24
  5. Step 5: Solve for x
    x = 1,997,286,444.24/47,486.91
  6. Step 6: Final answer
    x = 42,059.73

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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.