Home / 22,703.48-31,330.80-12,631.68

Finding the Fourth Proportional to 22,703.48, 31,330.80 and 12,631.68

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Solution

The fourth proportional to 22,703.48, 31,330.80 and 12,631.68 is: 17,431.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.48 : 31,330.80 = 12,631.68 : x
  2. Step 2: Convert to fraction form
    22,703.48/31,330.80 = 12,631.68/x
  3. Step 3: Cross multiply
    22,703.48x = 31,330.80 × 12,631.68
  4. Step 4: Simplify right side
    22,703.48x = 395,760,639.74
  5. Step 5: Solve for x
    x = 395,760,639.74/22,703.48
  6. Step 6: Final answer
    x = 17,431.72

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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.