Home / 29,146.55-43,709.12-10,421.51

Finding the Fourth Proportional to 29,146.55, 43,709.12 and 10,421.51

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Solution

The fourth proportional to 29,146.55, 43,709.12 and 10,421.51 is: 15,628.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,146.55 : 43,709.12 = 10,421.51 : x
  2. Step 2: Convert to fraction form
    29,146.55/43,709.12 = 10,421.51/x
  3. Step 3: Cross multiply
    29,146.55x = 43,709.12 × 10,421.51
  4. Step 4: Simplify right side
    29,146.55x = 455,515,045.46
  5. Step 5: Solve for x
    x = 455,515,045.46/29,146.55
  6. Step 6: Final answer
    x = 15,628.44

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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.