Home / 35,980.09-53,969.75-12,287.36

Finding the Fourth Proportional to 35,980.09, 53,969.75 and 12,287.36

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Solution

The fourth proportional to 35,980.09, 53,969.75 and 12,287.36 is: 18,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,980.09 : 53,969.75 = 12,287.36 : x
  2. Step 2: Convert to fraction form
    35,980.09/53,969.75 = 12,287.36/x
  3. Step 3: Cross multiply
    35,980.09x = 53,969.75 × 12,287.36
  4. Step 4: Simplify right side
    35,980.09x = 663,145,913.00
  5. Step 5: Solve for x
    x = 663,145,913.00/35,980.09
  6. Step 6: Final answer
    x = 18,430.91

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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.