Home / 21,027.77-29,017.35-12,068.97

Finding the Fourth Proportional to 21,027.77, 29,017.35 and 12,068.97

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Solution

The fourth proportional to 21,027.77, 29,017.35 and 12,068.97 is: 16,654.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.77 : 29,017.35 = 12,068.97 : x
  2. Step 2: Convert to fraction form
    21,027.77/29,017.35 = 12,068.97/x
  3. Step 3: Cross multiply
    21,027.77x = 29,017.35 × 12,068.97
  4. Step 4: Simplify right side
    21,027.77x = 350,209,526.63
  5. Step 5: Solve for x
    x = 350,209,526.63/21,027.77
  6. Step 6: Final answer
    x = 16,654.62

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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.