Home / 19,605.16-29,407.88-4,814.20

Finding the Fourth Proportional to 19,605.16, 29,407.88 and 4,814.20

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Solution

The fourth proportional to 19,605.16, 29,407.88 and 4,814.20 is: 7,221.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.16 : 29,407.88 = 4,814.20 : x
  2. Step 2: Convert to fraction form
    19,605.16/29,407.88 = 4,814.20/x
  3. Step 3: Cross multiply
    19,605.16x = 29,407.88 × 4,814.20
  4. Step 4: Simplify right side
    19,605.16x = 141,575,415.90
  5. Step 5: Solve for x
    x = 141,575,415.90/19,605.16
  6. Step 6: Final answer
    x = 7,221.33

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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.