Home / 47,343.90-65,307.03-30,342.11

Finding the Fourth Proportional to 47,343.90, 65,307.03 and 30,342.11

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Solution

The fourth proportional to 47,343.90, 65,307.03 and 30,342.11 is: 41,854.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,343.90 : 65,307.03 = 30,342.11 : x
  2. Step 2: Convert to fraction form
    47,343.90/65,307.03 = 30,342.11/x
  3. Step 3: Cross multiply
    47,343.90x = 65,307.03 × 30,342.11
  4. Step 4: Simplify right side
    47,343.90x = 1,981,552,761.50
  5. Step 5: Solve for x
    x = 1,981,552,761.50/47,343.90
  6. Step 6: Final answer
    x = 41,854.45

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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.