Home / 28,026.72-42,040.71-10,486.98

Finding the Fourth Proportional to 28,026.72, 42,040.71 and 10,486.98

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Solution

The fourth proportional to 28,026.72, 42,040.71 and 10,486.98 is: 15,730.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.72 : 42,040.71 = 10,486.98 : x
  2. Step 2: Convert to fraction form
    28,026.72/42,040.71 = 10,486.98/x
  3. Step 3: Cross multiply
    28,026.72x = 42,040.71 × 10,486.98
  4. Step 4: Simplify right side
    28,026.72x = 440,880,084.96
  5. Step 5: Solve for x
    x = 440,880,084.96/28,026.72
  6. Step 6: Final answer
    x = 15,730.71

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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.