Home / 20,512,294.72-28,307,052-11,093,085.70

Finding the Fourth Proportional to 20,512,294.72, 28,307,052 and 11,093,085.70

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Solution

The fourth proportional to 20,512,294.72, 28,307,052 and 11,093,085.70 is: 15,308,504.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512,294.72 : 28,307,052 = 11,093,085.70 : x
  2. Step 2: Convert to fraction form
    20,512,294.72/28,307,052 = 11,093,085.70/x
  3. Step 3: Cross multiply
    20,512,294.72x = 28,307,052 × 11,093,085.70
  4. Step 4: Simplify right side
    20,512,294.72x = 314,012,553,750,356.38
  5. Step 5: Solve for x
    x = 314,012,553,750,356.38/20,512,294.72
  6. Step 6: Final answer
    x = 15,308,504.39

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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.