Home / 22,696.81-31,320.73-12,624.91

Finding the Fourth Proportional to 22,696.81, 31,320.73 and 12,624.91

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Solution

The fourth proportional to 22,696.81, 31,320.73 and 12,624.91 is: 17,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,696.81 : 31,320.73 = 12,624.91 : x
  2. Step 2: Convert to fraction form
    22,696.81/31,320.73 = 12,624.91/x
  3. Step 3: Cross multiply
    22,696.81x = 31,320.73 × 12,624.91
  4. Step 4: Simplify right side
    22,696.81x = 395,421,440.03
  5. Step 5: Solve for x
    x = 395,421,440.03/22,696.81
  6. Step 6: Final answer
    x = 17,421.90

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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.