Home / 28,423.32-39,224.70-15,846.72

Finding the Fourth Proportional to 28,423.32, 39,224.70 and 15,846.72

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Solution

The fourth proportional to 28,423.32, 39,224.70 and 15,846.72 is: 21,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.32 : 39,224.70 = 15,846.72 : x
  2. Step 2: Convert to fraction form
    28,423.32/39,224.70 = 15,846.72/x
  3. Step 3: Cross multiply
    28,423.32x = 39,224.70 × 15,846.72
  4. Step 4: Simplify right side
    28,423.32x = 621,582,837.98
  5. Step 5: Solve for x
    x = 621,582,837.98/28,423.32
  6. Step 6: Final answer
    x = 21,868.76

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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.