Home / 29,298.77-40,432.31-15,869.98

Finding the Fourth Proportional to 29,298.77, 40,432.31 and 15,869.98

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Solution

The fourth proportional to 29,298.77, 40,432.31 and 15,869.98 is: 21,900.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,298.77 : 40,432.31 = 15,869.98 : x
  2. Step 2: Convert to fraction form
    29,298.77/40,432.31 = 15,869.98/x
  3. Step 3: Cross multiply
    29,298.77x = 40,432.31 × 15,869.98
  4. Step 4: Simplify right side
    29,298.77x = 641,659,951.05
  5. Step 5: Solve for x
    x = 641,659,951.05/29,298.77
  6. Step 6: Final answer
    x = 21,900.58

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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.