Home / 20,200.06-27,877.40-13,901.50

Finding the Fourth Proportional to 20,200.06, 27,877.40 and 13,901.50

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Solution

The fourth proportional to 20,200.06, 27,877.40 and 13,901.50 is: 19,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.06 : 27,877.40 = 13,901.50 : x
  2. Step 2: Convert to fraction form
    20,200.06/27,877.40 = 13,901.50/x
  3. Step 3: Cross multiply
    20,200.06x = 27,877.40 × 13,901.50
  4. Step 4: Simplify right side
    20,200.06x = 387,537,676.10
  5. Step 5: Solve for x
    x = 387,537,676.10/20,200.06
  6. Step 6: Final answer
    x = 19,184.98

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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.