Home / 21,489.51-29,656.04-12,058.77

Finding the Fourth Proportional to 21,489.51, 29,656.04 and 12,058.77

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Solution

The fourth proportional to 21,489.51, 29,656.04 and 12,058.77 is: 16,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489.51 : 29,656.04 = 12,058.77 : x
  2. Step 2: Convert to fraction form
    21,489.51/29,656.04 = 12,058.77/x
  3. Step 3: Cross multiply
    21,489.51x = 29,656.04 × 12,058.77
  4. Step 4: Simplify right side
    21,489.51x = 357,615,365.47
  5. Step 5: Solve for x
    x = 357,615,365.47/21,489.51
  6. Step 6: Final answer
    x = 16,641.39

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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.