Home / 21,433.83-32,155.80-8,946.91

Finding the Fourth Proportional to 21,433.83, 32,155.80 and 8,946.91

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Solution

The fourth proportional to 21,433.83, 32,155.80 and 8,946.91 is: 13,422.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433.83 : 32,155.80 = 8,946.91 : x
  2. Step 2: Convert to fraction form
    21,433.83/32,155.80 = 8,946.91/x
  3. Step 3: Cross multiply
    21,433.83x = 32,155.80 × 8,946.91
  4. Step 4: Simplify right side
    21,433.83x = 287,695,048.58
  5. Step 5: Solve for x
    x = 287,695,048.58/21,433.83
  6. Step 6: Final answer
    x = 13,422.48

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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.