Home / 35,816.40-53,650.77-20,980.34

Finding the Fourth Proportional to 35,816.40, 53,650.77 and 20,980.34

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Solution

The fourth proportional to 35,816.40, 53,650.77 and 20,980.34 is: 31,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,816.40 : 53,650.77 = 20,980.34 : x
  2. Step 2: Convert to fraction form
    35,816.40/53,650.77 = 20,980.34/x
  3. Step 3: Cross multiply
    35,816.40x = 53,650.77 × 20,980.34
  4. Step 4: Simplify right side
    35,816.40x = 1,125,611,127.61
  5. Step 5: Solve for x
    x = 1,125,611,127.61/35,816.40
  6. Step 6: Final answer
    x = 31,427.25

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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.