Home / 15,378.80-23,068.22-4,285.79

Finding the Fourth Proportional to 15,378.80, 23,068.22 and 4,285.79

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Solution

The fourth proportional to 15,378.80, 23,068.22 and 4,285.79 is: 6,428.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.80 : 23,068.22 = 4,285.79 : x
  2. Step 2: Convert to fraction form
    15,378.80/23,068.22 = 4,285.79/x
  3. Step 3: Cross multiply
    15,378.80x = 23,068.22 × 4,285.79
  4. Step 4: Simplify right side
    15,378.80x = 98,865,614.98
  5. Step 5: Solve for x
    x = 98,865,614.98/15,378.80
  6. Step 6: Final answer
    x = 6,428.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.