Home / 28,125.23-38,811.76-15,549.98

Finding the Fourth Proportional to 28,125.23, 38,811.76 and 15,549.98

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Solution

The fourth proportional to 28,125.23, 38,811.76 and 15,549.98 is: 21,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,125.23 : 38,811.76 = 15,549.98 : x
  2. Step 2: Convert to fraction form
    28,125.23/38,811.76 = 15,549.98/x
  3. Step 3: Cross multiply
    28,125.23x = 38,811.76 × 15,549.98
  4. Step 4: Simplify right side
    28,125.23x = 603,521,858.83
  5. Step 5: Solve for x
    x = 603,521,858.83/28,125.23
  6. Step 6: Final answer
    x = 21,458.38

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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.