Home / 27,309.40-37,686.87-15,372.77

Finding the Fourth Proportional to 27,309.40, 37,686.87 and 15,372.77

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Solution

The fourth proportional to 27,309.40, 37,686.87 and 15,372.77 is: 21,214.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,309.40 : 37,686.87 = 15,372.77 : x
  2. Step 2: Convert to fraction form
    27,309.40/37,686.87 = 15,372.77/x
  3. Step 3: Cross multiply
    27,309.40x = 37,686.87 × 15,372.77
  4. Step 4: Simplify right side
    27,309.40x = 579,351,396.10
  5. Step 5: Solve for x
    x = 579,351,396.10/27,309.40
  6. Step 6: Final answer
    x = 21,214.36

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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.