Home / 28,090.36-38,763.93-15,343.89

Finding the Fourth Proportional to 28,090.36, 38,763.93 and 15,343.89

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Solution

The fourth proportional to 28,090.36, 38,763.93 and 15,343.89 is: 21,174.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,090.36 : 38,763.93 = 15,343.89 : x
  2. Step 2: Convert to fraction form
    28,090.36/38,763.93 = 15,343.89/x
  3. Step 3: Cross multiply
    28,090.36x = 38,763.93 × 15,343.89
  4. Step 4: Simplify right side
    28,090.36x = 594,789,284.07
  5. Step 5: Solve for x
    x = 594,789,284.07/28,090.36
  6. Step 6: Final answer
    x = 21,174.14

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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.