Home / 22,661.13-31,271.70-12,589.32

Finding the Fourth Proportional to 22,661.13, 31,271.70 and 12,589.32

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Solution

The fourth proportional to 22,661.13, 31,271.70 and 12,589.32 is: 17,372.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.13 : 31,271.70 = 12,589.32 : x
  2. Step 2: Convert to fraction form
    22,661.13/31,271.70 = 12,589.32/x
  3. Step 3: Cross multiply
    22,661.13x = 31,271.70 × 12,589.32
  4. Step 4: Simplify right side
    22,661.13x = 393,689,438.24
  5. Step 5: Solve for x
    x = 393,689,438.24/22,661.13
  6. Step 6: Final answer
    x = 17,372.90

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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.