Home / 31,576.61-43,577.52-18,826.40

Finding the Fourth Proportional to 31,576.61, 43,577.52 and 18,826.40

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Solution

The fourth proportional to 31,576.61, 43,577.52 and 18,826.40 is: 25,981.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,576.61 : 43,577.52 = 18,826.40 : x
  2. Step 2: Convert to fraction form
    31,576.61/43,577.52 = 18,826.40/x
  3. Step 3: Cross multiply
    31,576.61x = 43,577.52 × 18,826.40
  4. Step 4: Simplify right side
    31,576.61x = 820,407,822.53
  5. Step 5: Solve for x
    x = 820,407,822.53/31,576.61
  6. Step 6: Final answer
    x = 25,981.50

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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.