Home / 21,039.51-29,035.26-12,088.65

Finding the Fourth Proportional to 21,039.51, 29,035.26 and 12,088.65

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Solution

The fourth proportional to 21,039.51, 29,035.26 and 12,088.65 is: 16,682.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,039.51 : 29,035.26 = 12,088.65 : x
  2. Step 2: Convert to fraction form
    21,039.51/29,035.26 = 12,088.65/x
  3. Step 3: Cross multiply
    21,039.51x = 29,035.26 × 12,088.65
  4. Step 4: Simplify right side
    21,039.51x = 350,997,095.80
  5. Step 5: Solve for x
    x = 350,997,095.80/21,039.51
  6. Step 6: Final answer
    x = 16,682.76

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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.