Home / 28,916.64-43,364.76-10,656

Finding the Fourth Proportional to 28,916.64, 43,364.76 and 10,656

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Solution

The fourth proportional to 28,916.64, 43,364.76 and 10,656 is: 15,980.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.64 : 43,364.76 = 10,656 : x
  2. Step 2: Convert to fraction form
    28,916.64/43,364.76 = 10,656/x
  3. Step 3: Cross multiply
    28,916.64x = 43,364.76 × 10,656
  4. Step 4: Simplify right side
    28,916.64x = 462,094,882.56
  5. Step 5: Solve for x
    x = 462,094,882.56/28,916.64
  6. Step 6: Final answer
    x = 15,980.24

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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.