Home / 19,323.09-26,686.92-15,558.72

Finding the Fourth Proportional to 19,323.09, 26,686.92 and 15,558.72

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Solution

The fourth proportional to 19,323.09, 26,686.92 and 15,558.72 is: 21,487.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323.09 : 26,686.92 = 15,558.72 : x
  2. Step 2: Convert to fraction form
    19,323.09/26,686.92 = 15,558.72/x
  3. Step 3: Cross multiply
    19,323.09x = 26,686.92 × 15,558.72
  4. Step 4: Simplify right side
    19,323.09x = 415,214,315.94
  5. Step 5: Solve for x
    x = 415,214,315.94/19,323.09
  6. Step 6: Final answer
    x = 21,487.99

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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.