Home / 28,689.68-43,024.76-10,916.12

Finding the Fourth Proportional to 28,689.68, 43,024.76 and 10,916.12

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Solution

The fourth proportional to 28,689.68, 43,024.76 and 10,916.12 is: 16,370.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.68 : 43,024.76 = 10,916.12 : x
  2. Step 2: Convert to fraction form
    28,689.68/43,024.76 = 10,916.12/x
  3. Step 3: Cross multiply
    28,689.68x = 43,024.76 × 10,916.12
  4. Step 4: Simplify right side
    28,689.68x = 469,663,443.13
  5. Step 5: Solve for x
    x = 469,663,443.13/28,689.68
  6. Step 6: Final answer
    x = 16,370.47

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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.