Home / 28,154.16-42,228.36-7,377.66

Finding the Fourth Proportional to 28,154.16, 42,228.36 and 7,377.66

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Solution

The fourth proportional to 28,154.16, 42,228.36 and 7,377.66 is: 11,065.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,154.16 : 42,228.36 = 7,377.66 : x
  2. Step 2: Convert to fraction form
    28,154.16/42,228.36 = 7,377.66/x
  3. Step 3: Cross multiply
    28,154.16x = 42,228.36 × 7,377.66
  4. Step 4: Simplify right side
    28,154.16x = 311,546,482.44
  5. Step 5: Solve for x
    x = 311,546,482.44/28,154.16
  6. Step 6: Final answer
    x = 11,065.74

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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.