Home / 28,339.70-42,510.22-12,541.36

Finding the Fourth Proportional to 28,339.70, 42,510.22 and 12,541.36

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Solution

The fourth proportional to 28,339.70, 42,510.22 and 12,541.36 is: 18,812.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339.70 : 42,510.22 = 12,541.36 : x
  2. Step 2: Convert to fraction form
    28,339.70/42,510.22 = 12,541.36/x
  3. Step 3: Cross multiply
    28,339.70x = 42,510.22 × 12,541.36
  4. Step 4: Simplify right side
    28,339.70x = 533,135,972.70
  5. Step 5: Solve for x
    x = 533,135,972.70/28,339.70
  6. Step 6: Final answer
    x = 18,812.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.