Home / 28,427.81-42,641.82-8,706.28

Finding the Fourth Proportional to 28,427.81, 42,641.82 and 8,706.28

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Solution

The fourth proportional to 28,427.81, 42,641.82 and 8,706.28 is: 13,059.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,427.81 : 42,641.82 = 8,706.28 : x
  2. Step 2: Convert to fraction form
    28,427.81/42,641.82 = 8,706.28/x
  3. Step 3: Cross multiply
    28,427.81x = 42,641.82 × 8,706.28
  4. Step 4: Simplify right side
    28,427.81x = 371,251,624.63
  5. Step 5: Solve for x
    x = 371,251,624.63/28,427.81
  6. Step 6: Final answer
    x = 13,059.45

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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.