Home / 29,298.08-40,431.34-15,869.22

Finding the Fourth Proportional to 29,298.08, 40,431.34 and 15,869.22

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Solution

The fourth proportional to 29,298.08, 40,431.34 and 15,869.22 is: 21,899.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,298.08 : 40,431.34 = 15,869.22 : x
  2. Step 2: Convert to fraction form
    29,298.08/40,431.34 = 15,869.22/x
  3. Step 3: Cross multiply
    29,298.08x = 40,431.34 × 15,869.22
  4. Step 4: Simplify right side
    29,298.08x = 641,613,829.35
  5. Step 5: Solve for x
    x = 641,613,829.35/29,298.08
  6. Step 6: Final answer
    x = 21,899.52

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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.