Home / 34,112.22-47,061.91-20,678.57

Finding the Fourth Proportional to 34,112.22, 47,061.91 and 20,678.57

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Solution

The fourth proportional to 34,112.22, 47,061.91 and 20,678.57 is: 28,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,112.22 : 47,061.91 = 20,678.57 : x
  2. Step 2: Convert to fraction form
    34,112.22/47,061.91 = 20,678.57/x
  3. Step 3: Cross multiply
    34,112.22x = 47,061.91 × 20,678.57
  4. Step 4: Simplify right side
    34,112.22x = 973,173,000.27
  5. Step 5: Solve for x
    x = 973,173,000.27/34,112.22
  6. Step 6: Final answer
    x = 28,528.57

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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.