Home / 19,851.40-27,393.70-10,898.85

Finding the Fourth Proportional to 19,851.40, 27,393.70 and 10,898.85

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Solution

The fourth proportional to 19,851.40, 27,393.70 and 10,898.85 is: 15,039.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,851.40 : 27,393.70 = 10,898.85 : x
  2. Step 2: Convert to fraction form
    19,851.40/27,393.70 = 10,898.85/x
  3. Step 3: Cross multiply
    19,851.40x = 27,393.70 × 10,898.85
  4. Step 4: Simplify right side
    19,851.40x = 298,559,840.87
  5. Step 5: Solve for x
    x = 298,559,840.87/19,851.40
  6. Step 6: Final answer
    x = 15,039.74

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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.