Home / 34,427.16-47,512.62-20,999.16

Finding the Fourth Proportional to 34,427.16, 47,512.62 and 20,999.16

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Solution

The fourth proportional to 34,427.16, 47,512.62 and 20,999.16 is: 28,980.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,427.16 : 47,512.62 = 20,999.16 : x
  2. Step 2: Convert to fraction form
    34,427.16/47,512.62 = 20,999.16/x
  3. Step 3: Cross multiply
    34,427.16x = 47,512.62 × 20,999.16
  4. Step 4: Simplify right side
    34,427.16x = 997,725,109.40
  5. Step 5: Solve for x
    x = 997,725,109.40/34,427.16
  6. Step 6: Final answer
    x = 28,980.76

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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.