Home / 28,302.21-39,083.31-18,254.16

Finding the Fourth Proportional to 28,302.21, 39,083.31 and 18,254.16

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Solution

The fourth proportional to 28,302.21, 39,083.31 and 18,254.16 is: 25,207.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,302.21 : 39,083.31 = 18,254.16 : x
  2. Step 2: Convert to fraction form
    28,302.21/39,083.31 = 18,254.16/x
  3. Step 3: Cross multiply
    28,302.21x = 39,083.31 × 18,254.16
  4. Step 4: Simplify right side
    28,302.21x = 713,432,994.07
  5. Step 5: Solve for x
    x = 713,432,994.07/28,302.21
  6. Step 6: Final answer
    x = 25,207.68

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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.