Home / 20,841.63-28,761.47-11,410.21

Finding the Fourth Proportional to 20,841.63, 28,761.47 and 11,410.21

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Solution

The fourth proportional to 20,841.63, 28,761.47 and 11,410.21 is: 15,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.63 : 28,761.47 = 11,410.21 : x
  2. Step 2: Convert to fraction form
    20,841.63/28,761.47 = 11,410.21/x
  3. Step 3: Cross multiply
    20,841.63x = 28,761.47 × 11,410.21
  4. Step 4: Simplify right side
    20,841.63x = 328,174,412.61
  5. Step 5: Solve for x
    x = 328,174,412.61/20,841.63
  6. Step 6: Final answer
    x = 15,746.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.