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Finding the Fourth Proportional to 35,571, 53,348.40 and 13,386.72

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Solution

The fourth proportional to 35,571, 53,348.40 and 13,386.72 is: 20,077.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,571 : 53,348.40 = 13,386.72 : x
  2. Step 2: Convert to fraction form
    35,571/53,348.40 = 13,386.72/x
  3. Step 3: Cross multiply
    35,571x = 53,348.40 × 13,386.72
  4. Step 4: Simplify right side
    35,571x = 714,160,093.25
  5. Step 5: Solve for x
    x = 714,160,093.25/35,571
  6. Step 6: Final answer
    x = 20,077.03

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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.