Home / 22,476.81-31,029.66-16,420.25

Finding the Fourth Proportional to 22,476.81, 31,029.66 and 16,420.25

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Solution

The fourth proportional to 22,476.81, 31,029.66 and 16,420.25 is: 22,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,476.81 : 31,029.66 = 16,420.25 : x
  2. Step 2: Convert to fraction form
    22,476.81/31,029.66 = 16,420.25/x
  3. Step 3: Cross multiply
    22,476.81x = 31,029.66 × 16,420.25
  4. Step 4: Simplify right side
    22,476.81x = 509,514,774.62
  5. Step 5: Solve for x
    x = 509,514,774.62/22,476.81
  6. Step 6: Final answer
    x = 22,668.46

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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.