Home / 20,551.93-28,363.16-11,600.21

Finding the Fourth Proportional to 20,551.93, 28,363.16 and 11,600.21

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Solution

The fourth proportional to 20,551.93, 28,363.16 and 11,600.21 is: 16,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.93 : 28,363.16 = 11,600.21 : x
  2. Step 2: Convert to fraction form
    20,551.93/28,363.16 = 11,600.21/x
  3. Step 3: Cross multiply
    20,551.93x = 28,363.16 × 11,600.21
  4. Step 4: Simplify right side
    20,551.93x = 329,018,612.26
  5. Step 5: Solve for x
    x = 329,018,612.26/20,551.93
  6. Step 6: Final answer
    x = 16,009.13

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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.