Home / 19,731.40-29,600.70-8,045.80

Finding the Fourth Proportional to 19,731.40, 29,600.70 and 8,045.80

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Solution

The fourth proportional to 19,731.40, 29,600.70 and 8,045.80 is: 12,070.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.40 : 29,600.70 = 8,045.80 : x
  2. Step 2: Convert to fraction form
    19,731.40/29,600.70 = 8,045.80/x
  3. Step 3: Cross multiply
    19,731.40x = 29,600.70 × 8,045.80
  4. Step 4: Simplify right side
    19,731.40x = 238,161,312.06
  5. Step 5: Solve for x
    x = 238,161,312.06/19,731.40
  6. Step 6: Final answer
    x = 12,070.17

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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.