Home / 28,209.04-38,927.88-15,633.52

Finding the Fourth Proportional to 28,209.04, 38,927.88 and 15,633.52

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Solution

The fourth proportional to 28,209.04, 38,927.88 and 15,633.52 is: 21,573.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,209.04 : 38,927.88 = 15,633.52 : x
  2. Step 2: Convert to fraction form
    28,209.04/38,927.88 = 15,633.52/x
  3. Step 3: Cross multiply
    28,209.04x = 38,927.88 × 15,633.52
  4. Step 4: Simplify right side
    28,209.04x = 608,579,790.54
  5. Step 5: Solve for x
    x = 608,579,790.54/28,209.04
  6. Step 6: Final answer
    x = 21,573.93

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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.