Home / 28,506.56-39,340.16-18,929.93

Finding the Fourth Proportional to 28,506.56, 39,340.16 and 18,929.93

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Solution

The fourth proportional to 28,506.56, 39,340.16 and 18,929.93 is: 26,124.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,506.56 : 39,340.16 = 18,929.93 : x
  2. Step 2: Convert to fraction form
    28,506.56/39,340.16 = 18,929.93/x
  3. Step 3: Cross multiply
    28,506.56x = 39,340.16 × 18,929.93
  4. Step 4: Simplify right side
    28,506.56x = 744,706,312.03
  5. Step 5: Solve for x
    x = 744,706,312.03/28,506.56
  6. Step 6: Final answer
    x = 26,124.03

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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.