Home / 28,938.90-43,425.62-12,927.18

Finding the Fourth Proportional to 28,938.90, 43,425.62 and 12,927.18

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Solution

The fourth proportional to 28,938.90, 43,425.62 and 12,927.18 is: 19,398.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,938.90 : 43,425.62 = 12,927.18 : x
  2. Step 2: Convert to fraction form
    28,938.90/43,425.62 = 12,927.18/x
  3. Step 3: Cross multiply
    28,938.90x = 43,425.62 × 12,927.18
  4. Step 4: Simplify right side
    28,938.90x = 561,370,741.72
  5. Step 5: Solve for x
    x = 561,370,741.72/28,938.90
  6. Step 6: Final answer
    x = 19,398.48

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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.