Home / 20,994.71-31,492.02-14,400.91

Finding the Fourth Proportional to 20,994.71, 31,492.02 and 14,400.91

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Solution

The fourth proportional to 20,994.71, 31,492.02 and 14,400.91 is: 21,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.71 : 31,492.02 = 14,400.91 : x
  2. Step 2: Convert to fraction form
    20,994.71/31,492.02 = 14,400.91/x
  3. Step 3: Cross multiply
    20,994.71x = 31,492.02 × 14,400.91
  4. Step 4: Simplify right side
    20,994.71x = 453,513,745.74
  5. Step 5: Solve for x
    x = 453,513,745.74/20,994.71
  6. Step 6: Final answer
    x = 21,601.33

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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.