Home / 28,606.50-42,916.24-10,138.50

Finding the Fourth Proportional to 28,606.50, 42,916.24 and 10,138.50

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Solution

The fourth proportional to 28,606.50, 42,916.24 and 10,138.50 is: 15,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.50 : 42,916.24 = 10,138.50 : x
  2. Step 2: Convert to fraction form
    28,606.50/42,916.24 = 10,138.50/x
  3. Step 3: Cross multiply
    28,606.50x = 42,916.24 × 10,138.50
  4. Step 4: Simplify right side
    28,606.50x = 435,106,299.24
  5. Step 5: Solve for x
    x = 435,106,299.24/28,606.50
  6. Step 6: Final answer
    x = 15,210.05

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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.