Home / 34,742.32-47,945.28-21,305.86

Finding the Fourth Proportional to 34,742.32, 47,945.28 and 21,305.86

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Solution

The fourth proportional to 34,742.32, 47,945.28 and 21,305.86 is: 29,402.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,742.32 : 47,945.28 = 21,305.86 : x
  2. Step 2: Convert to fraction form
    34,742.32/47,945.28 = 21,305.86/x
  3. Step 3: Cross multiply
    34,742.32x = 47,945.28 × 21,305.86
  4. Step 4: Simplify right side
    34,742.32x = 1,021,515,423.34
  5. Step 5: Solve for x
    x = 1,021,515,423.34/34,742.32
  6. Step 6: Final answer
    x = 29,402.63

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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.