Home / 19,983.02-27,583-12,903.98

Finding the Fourth Proportional to 19,983.02, 27,583 and 12,903.98

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Solution

The fourth proportional to 19,983.02, 27,583 and 12,903.98 is: 17,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,983.02 : 27,583 = 12,903.98 : x
  2. Step 2: Convert to fraction form
    19,983.02/27,583 = 12,903.98/x
  3. Step 3: Cross multiply
    19,983.02x = 27,583 × 12,903.98
  4. Step 4: Simplify right side
    19,983.02x = 355,930,480.34
  5. Step 5: Solve for x
    x = 355,930,480.34/19,983.02
  6. Step 6: Final answer
    x = 17,811.65

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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.