Home / 29,299.08-40,432.73-15,870.23

Finding the Fourth Proportional to 29,299.08, 40,432.73 and 15,870.23

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Solution

The fourth proportional to 29,299.08, 40,432.73 and 15,870.23 is: 21,900.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,299.08 : 40,432.73 = 15,870.23 : x
  2. Step 2: Convert to fraction form
    29,299.08/40,432.73 = 15,870.23/x
  3. Step 3: Cross multiply
    29,299.08x = 40,432.73 × 15,870.23
  4. Step 4: Simplify right side
    29,299.08x = 641,676,443.11
  5. Step 5: Solve for x
    x = 641,676,443.11/29,299.08
  6. Step 6: Final answer
    x = 21,900.91

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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.