Home / 21,511.40-32,256.30-9,811.40

Finding the Fourth Proportional to 21,511.40, 32,256.30 and 9,811.40

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Solution

The fourth proportional to 21,511.40, 32,256.30 and 9,811.40 is: 14,712.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,511.40 : 32,256.30 = 9,811.40 : x
  2. Step 2: Convert to fraction form
    21,511.40/32,256.30 = 9,811.40/x
  3. Step 3: Cross multiply
    21,511.40x = 32,256.30 × 9,811.40
  4. Step 4: Simplify right side
    21,511.40x = 316,479,461.82
  5. Step 5: Solve for x
    x = 316,479,461.82/21,511.40
  6. Step 6: Final answer
    x = 14,712.17

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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.