Home / 14,290.74-21,439.30-4,430.10

Finding the Fourth Proportional to 14,290.74, 21,439.30 and 4,430.10

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Solution

The fourth proportional to 14,290.74, 21,439.30 and 4,430.10 is: 6,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.74 : 21,439.30 = 4,430.10 : x
  2. Step 2: Convert to fraction form
    14,290.74/21,439.30 = 4,430.10/x
  3. Step 3: Cross multiply
    14,290.74x = 21,439.30 × 4,430.10
  4. Step 4: Simplify right side
    14,290.74x = 94,978,231.85
  5. Step 5: Solve for x
    x = 94,978,231.85/14,290.74
  6. Step 6: Final answer
    x = 6,646.14

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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.