Home / 30,837.29-42,556.50-18,898.33

Finding the Fourth Proportional to 30,837.29, 42,556.50 and 18,898.33

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Solution

The fourth proportional to 30,837.29, 42,556.50 and 18,898.33 is: 26,080.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,837.29 : 42,556.50 = 18,898.33 : x
  2. Step 2: Convert to fraction form
    30,837.29/42,556.50 = 18,898.33/x
  3. Step 3: Cross multiply
    30,837.29x = 42,556.50 × 18,898.33
  4. Step 4: Simplify right side
    30,837.29x = 804,246,559.03
  5. Step 5: Solve for x
    x = 804,246,559.03/30,837.29
  6. Step 6: Final answer
    x = 26,080.32

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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.