Home / 28,257.06-42,392.52-19,953.30

Finding the Fourth Proportional to 28,257.06, 42,392.52 and 19,953.30

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Solution

The fourth proportional to 28,257.06, 42,392.52 and 19,953.30 is: 29,934.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,257.06 : 42,392.52 = 19,953.30 : x
  2. Step 2: Convert to fraction form
    28,257.06/42,392.52 = 19,953.30/x
  3. Step 3: Cross multiply
    28,257.06x = 42,392.52 × 19,953.30
  4. Step 4: Simplify right side
    28,257.06x = 845,870,669.32
  5. Step 5: Solve for x
    x = 845,870,669.32/28,257.06
  6. Step 6: Final answer
    x = 29,934.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.