Home / 35,678.16-53,517.36-11,985.02

Finding the Fourth Proportional to 35,678.16, 53,517.36 and 11,985.02

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Solution

The fourth proportional to 35,678.16, 53,517.36 and 11,985.02 is: 17,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,678.16 : 53,517.36 = 11,985.02 : x
  2. Step 2: Convert to fraction form
    35,678.16/53,517.36 = 11,985.02/x
  3. Step 3: Cross multiply
    35,678.16x = 53,517.36 × 11,985.02
  4. Step 4: Simplify right side
    35,678.16x = 641,406,629.95
  5. Step 5: Solve for x
    x = 641,406,629.95/35,678.16
  6. Step 6: Final answer
    x = 17,977.57

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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.