Home / 20,887.02-31,298.27-14,106.03

Finding the Fourth Proportional to 20,887.02, 31,298.27 and 14,106.03

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Solution

The fourth proportional to 20,887.02, 31,298.27 and 14,106.03 is: 21,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,887.02 : 31,298.27 = 14,106.03 : x
  2. Step 2: Convert to fraction form
    20,887.02/31,298.27 = 14,106.03/x
  3. Step 3: Cross multiply
    20,887.02x = 31,298.27 × 14,106.03
  4. Step 4: Simplify right side
    20,887.02x = 441,494,370.83
  5. Step 5: Solve for x
    x = 441,494,370.83/20,887.02
  6. Step 6: Final answer
    x = 21,137.26

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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.