Home / 28,761.21-43,128.15-10,038.99

Finding the Fourth Proportional to 28,761.21, 43,128.15 and 10,038.99

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Solution

The fourth proportional to 28,761.21, 43,128.15 and 10,038.99 is: 15,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.21 : 43,128.15 = 10,038.99 : x
  2. Step 2: Convert to fraction form
    28,761.21/43,128.15 = 10,038.99/x
  3. Step 3: Cross multiply
    28,761.21x = 43,128.15 × 10,038.99
  4. Step 4: Simplify right side
    28,761.21x = 432,963,066.57
  5. Step 5: Solve for x
    x = 432,963,066.57/28,761.21
  6. Step 6: Final answer
    x = 15,053.72

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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.