Home / 18,999.04-28,427.28-15,713.68

Finding the Fourth Proportional to 18,999.04, 28,427.28 and 15,713.68

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Solution

The fourth proportional to 18,999.04, 28,427.28 and 15,713.68 is: 23,511.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,999.04 : 28,427.28 = 15,713.68 : x
  2. Step 2: Convert to fraction form
    18,999.04/28,427.28 = 15,713.68/x
  3. Step 3: Cross multiply
    18,999.04x = 28,427.28 × 15,713.68
  4. Step 4: Simplify right side
    18,999.04x = 446,697,181.19
  5. Step 5: Solve for x
    x = 446,697,181.19/18,999.04
  6. Step 6: Final answer
    x = 23,511.57

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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.