Home / 29,299.19-40,432.87-15,870.41

Finding the Fourth Proportional to 29,299.19, 40,432.87 and 15,870.41

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Solution

The fourth proportional to 29,299.19, 40,432.87 and 15,870.41 is: 21,901.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.19 : 40,432.87 = 15,870.41 : x
  2. Step 2: Convert to fraction form
    29,299.19/40,432.87 = 15,870.41/x
  3. Step 3: Cross multiply
    29,299.19x = 40,432.87 × 15,870.41
  4. Step 4: Simplify right side
    29,299.19x = 641,686,285.78
  5. Step 5: Solve for x
    x = 641,686,285.78/29,299.19
  6. Step 6: Final answer
    x = 21,901.16

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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.