Home / 21,060.61-29,053.15-12,556.74

Finding the Fourth Proportional to 21,060.61, 29,053.15 and 12,556.74

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Solution

The fourth proportional to 21,060.61, 29,053.15 and 12,556.74 is: 17,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,060.61 : 29,053.15 = 12,556.74 : x
  2. Step 2: Convert to fraction form
    21,060.61/29,053.15 = 12,556.74/x
  3. Step 3: Cross multiply
    21,060.61x = 29,053.15 × 12,556.74
  4. Step 4: Simplify right side
    21,060.61x = 364,812,642.68
  5. Step 5: Solve for x
    x = 364,812,642.68/21,060.61
  6. Step 6: Final answer
    x = 17,322.04

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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.