Home / 28,290.74-42,435.39-13,510.10

Finding the Fourth Proportional to 28,290.74, 42,435.39 and 13,510.10

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Solution

The fourth proportional to 28,290.74, 42,435.39 and 13,510.10 is: 20,264.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,290.74 : 42,435.39 = 13,510.10 : x
  2. Step 2: Convert to fraction form
    28,290.74/42,435.39 = 13,510.10/x
  3. Step 3: Cross multiply
    28,290.74x = 42,435.39 × 13,510.10
  4. Step 4: Simplify right side
    28,290.74x = 573,306,362.44
  5. Step 5: Solve for x
    x = 573,306,362.44/28,290.74
  6. Step 6: Final answer
    x = 20,264.81

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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.