Home / 19,690.79-29,536.30-4,899.71

Finding the Fourth Proportional to 19,690.79, 29,536.30 and 4,899.71

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Solution

The fourth proportional to 19,690.79, 29,536.30 and 4,899.71 is: 7,349.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.79 : 29,536.30 = 4,899.71 : x
  2. Step 2: Convert to fraction form
    19,690.79/29,536.30 = 4,899.71/x
  3. Step 3: Cross multiply
    19,690.79x = 29,536.30 × 4,899.71
  4. Step 4: Simplify right side
    19,690.79x = 144,719,304.47
  5. Step 5: Solve for x
    x = 144,719,304.47/19,690.79
  6. Step 6: Final answer
    x = 7,349.59

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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.