Home / 18,823.59-25,955.37-15,409.98

Finding the Fourth Proportional to 18,823.59, 25,955.37 and 15,409.98

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Solution

The fourth proportional to 18,823.59, 25,955.37 and 15,409.98 is: 21,248.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,823.59 : 25,955.37 = 15,409.98 : x
  2. Step 2: Convert to fraction form
    18,823.59/25,955.37 = 15,409.98/x
  3. Step 3: Cross multiply
    18,823.59x = 25,955.37 × 15,409.98
  4. Step 4: Simplify right side
    18,823.59x = 399,971,732.59
  5. Step 5: Solve for x
    x = 399,971,732.59/18,823.59
  6. Step 6: Final answer
    x = 21,248.43

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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.