Home / 28,403.21-39,189.16-18,051.18

Finding the Fourth Proportional to 28,403.21, 39,189.16 and 18,051.18

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Solution

The fourth proportional to 28,403.21, 39,189.16 and 18,051.18 is: 24,906.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,403.21 : 39,189.16 = 18,051.18 : x
  2. Step 2: Convert to fraction form
    28,403.21/39,189.16 = 18,051.18/x
  3. Step 3: Cross multiply
    28,403.21x = 39,189.16 × 18,051.18
  4. Step 4: Simplify right side
    28,403.21x = 707,410,554.34
  5. Step 5: Solve for x
    x = 707,410,554.34/28,403.21
  6. Step 6: Final answer
    x = 24,906.01

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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.