Home / 20,559.04-28,343.26-13,001.60

Finding the Fourth Proportional to 20,559.04, 28,343.26 and 13,001.60

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Solution

The fourth proportional to 20,559.04, 28,343.26 and 13,001.60 is: 17,924.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.04 : 28,343.26 = 13,001.60 : x
  2. Step 2: Convert to fraction form
    20,559.04/28,343.26 = 13,001.60/x
  3. Step 3: Cross multiply
    20,559.04x = 28,343.26 × 13,001.60
  4. Step 4: Simplify right side
    20,559.04x = 368,507,729.22
  5. Step 5: Solve for x
    x = 368,507,729.22/20,559.04
  6. Step 6: Final answer
    x = 17,924.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.