Home / 22,939.47-31,649.40-12,866.58

Finding the Fourth Proportional to 22,939.47, 31,649.40 and 12,866.58

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Solution

The fourth proportional to 22,939.47, 31,649.40 and 12,866.58 is: 17,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,939.47 : 31,649.40 = 12,866.58 : x
  2. Step 2: Convert to fraction form
    22,939.47/31,649.40 = 12,866.58/x
  3. Step 3: Cross multiply
    22,939.47x = 31,649.40 × 12,866.58
  4. Step 4: Simplify right side
    22,939.47x = 407,219,537.05
  5. Step 5: Solve for x
    x = 407,219,537.05/22,939.47
  6. Step 6: Final answer
    x = 17,751.92

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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.