Home / 35,405.16-53,107.75-13,220.27

Finding the Fourth Proportional to 35,405.16, 53,107.75 and 13,220.27

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Solution

The fourth proportional to 35,405.16, 53,107.75 and 13,220.27 is: 19,830.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.16 : 53,107.75 = 13,220.27 : x
  2. Step 2: Convert to fraction form
    35,405.16/53,107.75 = 13,220.27/x
  3. Step 3: Cross multiply
    35,405.16x = 53,107.75 × 13,220.27
  4. Step 4: Simplify right side
    35,405.16x = 702,098,794.09
  5. Step 5: Solve for x
    x = 702,098,794.09/35,405.16
  6. Step 6: Final answer
    x = 19,830.41

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1.5x scale

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.