Home / 19,785.98-29,689.34-8,700.44

Finding the Fourth Proportional to 19,785.98, 29,689.34 and 8,700.44

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Solution

The fourth proportional to 19,785.98, 29,689.34 and 8,700.44 is: 13,055.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,785.98 : 29,689.34 = 8,700.44 : x
  2. Step 2: Convert to fraction form
    19,785.98/29,689.34 = 8,700.44/x
  3. Step 3: Cross multiply
    19,785.98x = 29,689.34 × 8,700.44
  4. Step 4: Simplify right side
    19,785.98x = 258,310,129.36
  5. Step 5: Solve for x
    x = 258,310,129.36/19,785.98
  6. Step 6: Final answer
    x = 13,055.21

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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.