Home / 21,053.80-28,995.19-20,594.53

Finding the Fourth Proportional to 21,053.80, 28,995.19 and 20,594.53

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Solution

The fourth proportional to 21,053.80, 28,995.19 and 20,594.53 is: 28,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,053.80 : 28,995.19 = 20,594.53 : x
  2. Step 2: Convert to fraction form
    21,053.80/28,995.19 = 20,594.53/x
  3. Step 3: Cross multiply
    21,053.80x = 28,995.19 × 20,594.53
  4. Step 4: Simplify right side
    21,053.80x = 597,142,310.31
  5. Step 5: Solve for x
    x = 597,142,310.31/21,053.80
  6. Step 6: Final answer
    x = 28,362.69

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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.