Home / 21,440.25-29,587.56-12,009.03

Finding the Fourth Proportional to 21,440.25, 29,587.56 and 12,009.03

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Solution

The fourth proportional to 21,440.25, 29,587.56 and 12,009.03 is: 16,572.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.25 : 29,587.56 = 12,009.03 : x
  2. Step 2: Convert to fraction form
    21,440.25/29,587.56 = 12,009.03/x
  3. Step 3: Cross multiply
    21,440.25x = 29,587.56 × 12,009.03
  4. Step 4: Simplify right side
    21,440.25x = 355,317,895.67
  5. Step 5: Solve for x
    x = 355,317,895.67/21,440.25
  6. Step 6: Final answer
    x = 16,572.47

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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.