Home / 35,487.90-53,222.04-13,299.66

Finding the Fourth Proportional to 35,487.90, 53,222.04 and 13,299.66

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Solution

The fourth proportional to 35,487.90, 53,222.04 and 13,299.66 is: 19,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,487.90 : 53,222.04 = 13,299.66 : x
  2. Step 2: Convert to fraction form
    35,487.90/53,222.04 = 13,299.66/x
  3. Step 3: Cross multiply
    35,487.90x = 53,222.04 × 13,299.66
  4. Step 4: Simplify right side
    35,487.90x = 707,835,036.51
  5. Step 5: Solve for x
    x = 707,835,036.51/35,487.90
  6. Step 6: Final answer
    x = 19,945.81

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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.