Home / 20,264.61-27,964.90-11,312.26

Finding the Fourth Proportional to 20,264.61, 27,964.90 and 11,312.26

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Solution

The fourth proportional to 20,264.61, 27,964.90 and 11,312.26 is: 15,610.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,264.61 : 27,964.90 = 11,312.26 : x
  2. Step 2: Convert to fraction form
    20,264.61/27,964.90 = 11,312.26/x
  3. Step 3: Cross multiply
    20,264.61x = 27,964.90 × 11,312.26
  4. Step 4: Simplify right side
    20,264.61x = 316,346,100.27
  5. Step 5: Solve for x
    x = 316,346,100.27/20,264.61
  6. Step 6: Final answer
    x = 15,610.77

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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.