Home / 21,062.34-29,055.54-12,558.48

Finding the Fourth Proportional to 21,062.34, 29,055.54 and 12,558.48

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Solution

The fourth proportional to 21,062.34, 29,055.54 and 12,558.48 is: 17,324.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.34 : 29,055.54 = 12,558.48 : x
  2. Step 2: Convert to fraction form
    21,062.34/29,055.54 = 12,558.48/x
  3. Step 3: Cross multiply
    21,062.34x = 29,055.54 × 12,558.48
  4. Step 4: Simplify right side
    21,062.34x = 364,893,417.98
  5. Step 5: Solve for x
    x = 364,893,417.98/21,062.34
  6. Step 6: Final answer
    x = 17,324.45

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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.