Home / 21,448.48-29,600.80-12,019.04

Finding the Fourth Proportional to 21,448.48, 29,600.80 and 12,019.04

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Solution

The fourth proportional to 21,448.48, 29,600.80 and 12,019.04 is: 16,587.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.48 : 29,600.80 = 12,019.04 : x
  2. Step 2: Convert to fraction form
    21,448.48/29,600.80 = 12,019.04/x
  3. Step 3: Cross multiply
    21,448.48x = 29,600.80 × 12,019.04
  4. Step 4: Simplify right side
    21,448.48x = 355,773,199.23
  5. Step 5: Solve for x
    x = 355,773,199.23/21,448.48
  6. Step 6: Final answer
    x = 16,587.34

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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.