Home / 29,298.44-40,431.74-15,869.66

Finding the Fourth Proportional to 29,298.44, 40,431.74 and 15,869.66

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Solution

The fourth proportional to 29,298.44, 40,431.74 and 15,869.66 is: 21,900.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,298.44 : 40,431.74 = 15,869.66 : x
  2. Step 2: Convert to fraction form
    29,298.44/40,431.74 = 15,869.66/x
  3. Step 3: Cross multiply
    29,298.44x = 40,431.74 × 15,869.66
  4. Step 4: Simplify right side
    29,298.44x = 641,637,967.01
  5. Step 5: Solve for x
    x = 641,637,967.01/29,298.44
  6. Step 6: Final answer
    x = 21,900.07

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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.