Home / 35,721.40-53,530.80-20,106.04

Finding the Fourth Proportional to 35,721.40, 53,530.80 and 20,106.04

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Solution

The fourth proportional to 35,721.40, 53,530.80 and 20,106.04 is: 30,130.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,721.40 : 53,530.80 = 20,106.04 : x
  2. Step 2: Convert to fraction form
    35,721.40/53,530.80 = 20,106.04/x
  3. Step 3: Cross multiply
    35,721.40x = 53,530.80 × 20,106.04
  4. Step 4: Simplify right side
    35,721.40x = 1,076,292,406.03
  5. Step 5: Solve for x
    x = 1,076,292,406.03/35,721.40
  6. Step 6: Final answer
    x = 30,130.19

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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.