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Finding the Fourth Proportional to 30,702.51, 46,053.81 and 20,817.27

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Solution

The fourth proportional to 30,702.51, 46,053.81 and 20,817.27 is: 31,225.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,702.51 : 46,053.81 = 20,817.27 : x
  2. Step 2: Convert to fraction form
    30,702.51/46,053.81 = 20,817.27/x
  3. Step 3: Cross multiply
    30,702.51x = 46,053.81 × 20,817.27
  4. Step 4: Simplify right side
    30,702.51x = 958,714,597.30
  5. Step 5: Solve for x
    x = 958,714,597.30/30,702.51
  6. Step 6: Final answer
    x = 31,225.94

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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.