Home / 20,554.66-28,364.83-11,603.00

Finding the Fourth Proportional to 20,554.66, 28,364.83 and 11,603.00

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Solution

The fourth proportional to 20,554.66, 28,364.83 and 11,603.00 is: 16,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.66 : 28,364.83 = 11,603.00 : x
  2. Step 2: Convert to fraction form
    20,554.66/28,364.83 = 11,603.00/x
  3. Step 3: Cross multiply
    20,554.66x = 28,364.83 × 11,603.00
  4. Step 4: Simplify right side
    20,554.66x = 329,117,070.11
  5. Step 5: Solve for x
    x = 329,117,070.11/20,554.66
  6. Step 6: Final answer
    x = 16,011.80

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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.