Home / 20,879.64-31,300.02-14,308.92

Finding the Fourth Proportional to 20,879.64, 31,300.02 and 14,308.92

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Solution

The fourth proportional to 20,879.64, 31,300.02 and 14,308.92 is: 21,450.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,879.64 : 31,300.02 = 14,308.92 : x
  2. Step 2: Convert to fraction form
    20,879.64/31,300.02 = 14,308.92/x
  3. Step 3: Cross multiply
    20,879.64x = 31,300.02 × 14,308.92
  4. Step 4: Simplify right side
    20,879.64x = 447,869,482.18
  5. Step 5: Solve for x
    x = 447,869,482.18/20,879.64
  6. Step 6: Final answer
    x = 21,450.06

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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.