Home / 47,622.79-65,689.68-30,649.11

Finding the Fourth Proportional to 47,622.79, 65,689.68 and 30,649.11

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Solution

The fourth proportional to 47,622.79, 65,689.68 and 30,649.11 is: 42,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,622.79 : 65,689.68 = 30,649.11 : x
  2. Step 2: Convert to fraction form
    47,622.79/65,689.68 = 30,649.11/x
  3. Step 3: Cross multiply
    47,622.79x = 65,689.68 × 30,649.11
  4. Step 4: Simplify right side
    47,622.79x = 2,013,330,228.18
  5. Step 5: Solve for x
    x = 2,013,330,228.18/47,622.79
  6. Step 6: Final answer
    x = 42,276.61

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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.