Home / 28,916.10-43,386.30-15,777.90

Finding the Fourth Proportional to 28,916.10, 43,386.30 and 15,777.90

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Solution

The fourth proportional to 28,916.10, 43,386.30 and 15,777.90 is: 23,673.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,916.10 : 43,386.30 = 15,777.90 : x
  2. Step 2: Convert to fraction form
    28,916.10/43,386.30 = 15,777.90/x
  3. Step 3: Cross multiply
    28,916.10x = 43,386.30 × 15,777.90
  4. Step 4: Simplify right side
    28,916.10x = 684,544,702.77
  5. Step 5: Solve for x
    x = 684,544,702.77/28,916.10
  6. Step 6: Final answer
    x = 23,673.48

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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.