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Finding the Fourth Proportional to 40,702.44, 61,004.44 and 20,970.23

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Solution

The fourth proportional to 40,702.44, 61,004.44 and 20,970.23 is: 31,429.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,702.44 : 61,004.44 = 20,970.23 : x
  2. Step 2: Convert to fraction form
    40,702.44/61,004.44 = 20,970.23/x
  3. Step 3: Cross multiply
    40,702.44x = 61,004.44 × 20,970.23
  4. Step 4: Simplify right side
    40,702.44x = 1,279,276,832.80
  5. Step 5: Solve for x
    x = 1,279,276,832.80/40,702.44
  6. Step 6: Final answer
    x = 31,429.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.