Home / 22,985.94-31,720.08-12,776.31

Finding the Fourth Proportional to 22,985.94, 31,720.08 and 12,776.31

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Solution

The fourth proportional to 22,985.94, 31,720.08 and 12,776.31 is: 17,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,985.94 : 31,720.08 = 12,776.31 : x
  2. Step 2: Convert to fraction form
    22,985.94/31,720.08 = 12,776.31/x
  3. Step 3: Cross multiply
    22,985.94x = 31,720.08 × 12,776.31
  4. Step 4: Simplify right side
    22,985.94x = 405,265,575.30
  5. Step 5: Solve for x
    x = 405,265,575.30/22,985.94
  6. Step 6: Final answer
    x = 17,631.02

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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.