Home / 22,660.16-31,271.06-12,589.22

Finding the Fourth Proportional to 22,660.16, 31,271.06 and 12,589.22

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Solution

The fourth proportional to 22,660.16, 31,271.06 and 12,589.22 is: 17,373.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.16 : 31,271.06 = 12,589.22 : x
  2. Step 2: Convert to fraction form
    22,660.16/31,271.06 = 12,589.22/x
  3. Step 3: Cross multiply
    22,660.16x = 31,271.06 × 12,589.22
  4. Step 4: Simplify right side
    22,660.16x = 393,678,363.62
  5. Step 5: Solve for x
    x = 393,678,363.62/22,660.16
  6. Step 6: Final answer
    x = 17,373.15

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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.