Home / 19,851.81-27,377.21-13,487.93

Finding the Fourth Proportional to 19,851.81, 27,377.21 and 13,487.93

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Solution

The fourth proportional to 19,851.81, 27,377.21 and 13,487.93 is: 18,600.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.81 : 27,377.21 = 13,487.93 : x
  2. Step 2: Convert to fraction form
    19,851.81/27,377.21 = 13,487.93/x
  3. Step 3: Cross multiply
    19,851.81x = 27,377.21 × 13,487.93
  4. Step 4: Simplify right side
    19,851.81x = 369,261,738.33
  5. Step 5: Solve for x
    x = 369,261,738.33/19,851.81
  6. Step 6: Final answer
    x = 18,600.91

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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.