Home / 25,012.80-34,511.40-14,400.72

Finding the Fourth Proportional to 25,012.80, 34,511.40 and 14,400.72

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Solution

The fourth proportional to 25,012.80, 34,511.40 and 14,400.72 is: 19,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,012.80 : 34,511.40 = 14,400.72 : x
  2. Step 2: Convert to fraction form
    25,012.80/34,511.40 = 14,400.72/x
  3. Step 3: Cross multiply
    25,012.80x = 34,511.40 × 14,400.72
  4. Step 4: Simplify right side
    25,012.80x = 496,989,008.21
  5. Step 5: Solve for x
    x = 496,989,008.21/25,012.80
  6. Step 6: Final answer
    x = 19,869.39

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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.