Home / 27,320.87-37,702.94-15,384.40

Finding the Fourth Proportional to 27,320.87, 37,702.94 and 15,384.40

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Solution

The fourth proportional to 27,320.87, 37,702.94 and 15,384.40 is: 21,230.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320.87 : 37,702.94 = 15,384.40 : x
  2. Step 2: Convert to fraction form
    27,320.87/37,702.94 = 15,384.40/x
  3. Step 3: Cross multiply
    27,320.87x = 37,702.94 × 15,384.40
  4. Step 4: Simplify right side
    27,320.87x = 580,036,938.96
  5. Step 5: Solve for x
    x = 580,036,938.96/27,320.87
  6. Step 6: Final answer
    x = 21,230.54

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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.