Home / 21,051.61-29,050.49-12,549.34

Finding the Fourth Proportional to 21,051.61, 29,050.49 and 12,549.34

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Solution

The fourth proportional to 21,051.61, 29,050.49 and 12,549.34 is: 17,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,051.61 : 29,050.49 = 12,549.34 : x
  2. Step 2: Convert to fraction form
    21,051.61/29,050.49 = 12,549.34/x
  3. Step 3: Cross multiply
    21,051.61x = 29,050.49 × 12,549.34
  4. Step 4: Simplify right side
    21,051.61x = 364,564,476.18
  5. Step 5: Solve for x
    x = 364,564,476.18/21,051.61
  6. Step 6: Final answer
    x = 17,317.65

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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.