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Finding the Fourth Proportional to 26,751.40, 40,127.10 and 18,802.60

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Solution

The fourth proportional to 26,751.40, 40,127.10 and 18,802.60 is: 28,203.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,751.40 : 40,127.10 = 18,802.60 : x
  2. Step 2: Convert to fraction form
    26,751.40/40,127.10 = 18,802.60/x
  3. Step 3: Cross multiply
    26,751.40x = 40,127.10 × 18,802.60
  4. Step 4: Simplify right side
    26,751.40x = 754,493,810.46
  5. Step 5: Solve for x
    x = 754,493,810.46/26,751.40
  6. Step 6: Final answer
    x = 28,203.90

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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.