Home / 20,877.48-31,237.72-14,649.64

Finding the Fourth Proportional to 20,877.48, 31,237.72 and 14,649.64

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Solution

The fourth proportional to 20,877.48, 31,237.72 and 14,649.64 is: 21,919.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,877.48 : 31,237.72 = 14,649.64 : x
  2. Step 2: Convert to fraction form
    20,877.48/31,237.72 = 14,649.64/x
  3. Step 3: Cross multiply
    20,877.48x = 31,237.72 × 14,649.64
  4. Step 4: Simplify right side
    20,877.48x = 457,621,237.70
  5. Step 5: Solve for x
    x = 457,621,237.70/20,877.48
  6. Step 6: Final answer
    x = 21,919.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.