Home / 20,551.13-28,360.07-11,598.39

Finding the Fourth Proportional to 20,551.13, 28,360.07 and 11,598.39

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Solution

The fourth proportional to 20,551.13, 28,360.07 and 11,598.39 is: 16,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.13 : 28,360.07 = 11,598.39 : x
  2. Step 2: Convert to fraction form
    20,551.13/28,360.07 = 11,598.39/x
  3. Step 3: Cross multiply
    20,551.13x = 28,360.07 × 11,598.39
  4. Step 4: Simplify right side
    20,551.13x = 328,931,094.30
  5. Step 5: Solve for x
    x = 328,931,094.30/20,551.13
  6. Step 6: Final answer
    x = 16,005.50

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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.