Home / 19,282.58-28,916.57-10,512.72

Finding the Fourth Proportional to 19,282.58, 28,916.57 and 10,512.72

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Solution

The fourth proportional to 19,282.58, 28,916.57 and 10,512.72 is: 15,765.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,282.58 : 28,916.57 = 10,512.72 : x
  2. Step 2: Convert to fraction form
    19,282.58/28,916.57 = 10,512.72/x
  3. Step 3: Cross multiply
    19,282.58x = 28,916.57 × 10,512.72
  4. Step 4: Simplify right side
    19,282.58x = 303,991,803.77
  5. Step 5: Solve for x
    x = 303,991,803.77/19,282.58
  6. Step 6: Final answer
    x = 15,765.10

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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.