Home / 28,068.60-38,721.47-16,731.64

Finding the Fourth Proportional to 28,068.60, 38,721.47 and 16,731.64

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Solution

The fourth proportional to 28,068.60, 38,721.47 and 16,731.64 is: 23,081.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.60 : 38,721.47 = 16,731.64 : x
  2. Step 2: Convert to fraction form
    28,068.60/38,721.47 = 16,731.64/x
  3. Step 3: Cross multiply
    28,068.60x = 38,721.47 × 16,731.64
  4. Step 4: Simplify right side
    28,068.60x = 647,873,696.31
  5. Step 5: Solve for x
    x = 647,873,696.31/28,068.60
  6. Step 6: Final answer
    x = 23,081.80

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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.