Home / 21,490.33-32,088.42-19,254.73

Finding the Fourth Proportional to 21,490.33, 32,088.42 and 19,254.73

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Solution

The fourth proportional to 21,490.33, 32,088.42 and 19,254.73 is: 28,750.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,490.33 : 32,088.42 = 19,254.73 : x
  2. Step 2: Convert to fraction form
    21,490.33/32,088.42 = 19,254.73/x
  3. Step 3: Cross multiply
    21,490.33x = 32,088.42 × 19,254.73
  4. Step 4: Simplify right side
    21,490.33x = 617,853,863.23
  5. Step 5: Solve for x
    x = 617,853,863.23/21,490.33
  6. Step 6: Final answer
    x = 28,750.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.