Home / 28,054.48-38,723.40-17,438.80

Finding the Fourth Proportional to 28,054.48, 38,723.40 and 17,438.80

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Solution

The fourth proportional to 28,054.48, 38,723.40 and 17,438.80 is: 24,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,054.48 : 38,723.40 = 17,438.80 : x
  2. Step 2: Convert to fraction form
    28,054.48/38,723.40 = 17,438.80/x
  3. Step 3: Cross multiply
    28,054.48x = 38,723.40 × 17,438.80
  4. Step 4: Simplify right side
    28,054.48x = 675,289,627.92
  5. Step 5: Solve for x
    x = 675,289,627.92/28,054.48
  6. Step 6: Final answer
    x = 24,070.65

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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.