Home / 21,501.06-29,671.50-12,069.69

Finding the Fourth Proportional to 21,501.06, 29,671.50 and 12,069.69

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Solution

The fourth proportional to 21,501.06, 29,671.50 and 12,069.69 is: 16,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,501.06 : 29,671.50 = 12,069.69 : x
  2. Step 2: Convert to fraction form
    21,501.06/29,671.50 = 12,069.69/x
  3. Step 3: Cross multiply
    21,501.06x = 29,671.50 × 12,069.69
  4. Step 4: Simplify right side
    21,501.06x = 358,125,806.84
  5. Step 5: Solve for x
    x = 358,125,806.84/21,501.06
  6. Step 6: Final answer
    x = 16,656.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.