Home / 21,611.61-32,417.41-6,830.91

Finding the Fourth Proportional to 21,611.61, 32,417.41 and 6,830.91

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Solution

The fourth proportional to 21,611.61, 32,417.41 and 6,830.91 is: 10,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,611.61 : 32,417.41 = 6,830.91 : x
  2. Step 2: Convert to fraction form
    21,611.61/32,417.41 = 6,830.91/x
  3. Step 3: Cross multiply
    21,611.61x = 32,417.41 × 6,830.91
  4. Step 4: Simplify right side
    21,611.61x = 221,440,248.06
  5. Step 5: Solve for x
    x = 221,440,248.06/21,611.61
  6. Step 6: Final answer
    x = 10,246.36

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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.