Home / 29,283.81-40,411.59-15,855.06

Finding the Fourth Proportional to 29,283.81, 40,411.59 and 15,855.06

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Solution

The fourth proportional to 29,283.81, 40,411.59 and 15,855.06 is: 21,879.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,283.81 : 40,411.59 = 15,855.06 : x
  2. Step 2: Convert to fraction form
    29,283.81/40,411.59 = 15,855.06/x
  3. Step 3: Cross multiply
    29,283.81x = 40,411.59 × 15,855.06
  4. Step 4: Simplify right side
    29,283.81x = 640,728,184.15
  5. Step 5: Solve for x
    x = 640,728,184.15/29,283.81
  6. Step 6: Final answer
    x = 21,879.95

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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.