Home / 14,355.90-21,497.40-13,699.80

Finding the Fourth Proportional to 14,355.90, 21,497.40 and 13,699.80

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Solution

The fourth proportional to 14,355.90, 21,497.40 and 13,699.80 is: 20,514.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,355.90 : 21,497.40 = 13,699.80 : x
  2. Step 2: Convert to fraction form
    14,355.90/21,497.40 = 13,699.80/x
  3. Step 3: Cross multiply
    14,355.90x = 21,497.40 × 13,699.80
  4. Step 4: Simplify right side
    14,355.90x = 294,510,080.52
  5. Step 5: Solve for x
    x = 294,510,080.52/14,355.90
  6. Step 6: Final answer
    x = 20,514.92

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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.