Home / 29,312.72-40,451.69-15,883.99

Finding the Fourth Proportional to 29,312.72, 40,451.69 and 15,883.99

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Solution

The fourth proportional to 29,312.72, 40,451.69 and 15,883.99 is: 21,919.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,312.72 : 40,451.69 = 15,883.99 : x
  2. Step 2: Convert to fraction form
    29,312.72/40,451.69 = 15,883.99/x
  3. Step 3: Cross multiply
    29,312.72x = 40,451.69 × 15,883.99
  4. Step 4: Simplify right side
    29,312.72x = 642,534,239.44
  5. Step 5: Solve for x
    x = 642,534,239.44/29,312.72
  6. Step 6: Final answer
    x = 21,919.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.