Home / 14,287.88-21,430.99-4,292.41

Finding the Fourth Proportional to 14,287.88, 21,430.99 and 4,292.41

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Solution

The fourth proportional to 14,287.88, 21,430.99 and 4,292.41 is: 6,438.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,287.88 : 21,430.99 = 4,292.41 : x
  2. Step 2: Convert to fraction form
    14,287.88/21,430.99 = 4,292.41/x
  3. Step 3: Cross multiply
    14,287.88x = 21,430.99 × 4,292.41
  4. Step 4: Simplify right side
    14,287.88x = 91,990,547.45
  5. Step 5: Solve for x
    x = 91,990,547.45/14,287.88
  6. Step 6: Final answer
    x = 6,438.36

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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.