Home / 34,313.76-47,339.12-20,874.24

Finding the Fourth Proportional to 34,313.76, 47,339.12 and 20,874.24

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Solution

The fourth proportional to 34,313.76, 47,339.12 and 20,874.24 is: 28,798.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,313.76 : 47,339.12 = 20,874.24 : x
  2. Step 2: Convert to fraction form
    34,313.76/47,339.12 = 20,874.24/x
  3. Step 3: Cross multiply
    34,313.76x = 47,339.12 × 20,874.24
  4. Step 4: Simplify right side
    34,313.76x = 988,168,152.27
  5. Step 5: Solve for x
    x = 988,168,152.27/34,313.76
  6. Step 6: Final answer
    x = 28,798.01

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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.