Home / 18,916.93-28,470.46-14,261.05

Finding the Fourth Proportional to 18,916.93, 28,470.46 and 14,261.05

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Solution

The fourth proportional to 18,916.93, 28,470.46 and 14,261.05 is: 21,463.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.93 : 28,470.46 = 14,261.05 : x
  2. Step 2: Convert to fraction form
    18,916.93/28,470.46 = 14,261.05/x
  3. Step 3: Cross multiply
    18,916.93x = 28,470.46 × 14,261.05
  4. Step 4: Simplify right side
    18,916.93x = 406,018,653.58
  5. Step 5: Solve for x
    x = 406,018,653.58/18,916.93
  6. Step 6: Final answer
    x = 21,463.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.