Home / 21,736.02-29,994.08-12,302.76

Finding the Fourth Proportional to 21,736.02, 29,994.08 and 12,302.76

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Solution

The fourth proportional to 21,736.02, 29,994.08 and 12,302.76 is: 16,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.02 : 29,994.08 = 12,302.76 : x
  2. Step 2: Convert to fraction form
    21,736.02/29,994.08 = 12,302.76/x
  3. Step 3: Cross multiply
    21,736.02x = 29,994.08 × 12,302.76
  4. Step 4: Simplify right side
    21,736.02x = 369,009,967.66
  5. Step 5: Solve for x
    x = 369,009,967.66/21,736.02
  6. Step 6: Final answer
    x = 16,976.89

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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.