Home / 28,080.47-38,751.14-15,333.77

Finding the Fourth Proportional to 28,080.47, 38,751.14 and 15,333.77

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Solution

The fourth proportional to 28,080.47, 38,751.14 and 15,333.77 is: 21,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.47 : 38,751.14 = 15,333.77 : x
  2. Step 2: Convert to fraction form
    28,080.47/38,751.14 = 15,333.77/x
  3. Step 3: Cross multiply
    28,080.47x = 38,751.14 × 15,333.77
  4. Step 4: Simplify right side
    28,080.47x = 594,201,203.21
  5. Step 5: Solve for x
    x = 594,201,203.21/28,080.47
  6. Step 6: Final answer
    x = 21,160.66

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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.