Home / 20,111.04-30,132.40-13,080.32

Finding the Fourth Proportional to 20,111.04, 30,132.40 and 13,080.32

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Solution

The fourth proportional to 20,111.04, 30,132.40 and 13,080.32 is: 19,598.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,111.04 : 30,132.40 = 13,080.32 : x
  2. Step 2: Convert to fraction form
    20,111.04/30,132.40 = 13,080.32/x
  3. Step 3: Cross multiply
    20,111.04x = 30,132.40 × 13,080.32
  4. Step 4: Simplify right side
    20,111.04x = 394,141,434.37
  5. Step 5: Solve for x
    x = 394,141,434.37/20,111.04
  6. Step 6: Final answer
    x = 19,598.26

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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.