Home / 28,004.32-42,014.70-8,283.40

Finding the Fourth Proportional to 28,004.32, 42,014.70 and 8,283.40

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Solution

The fourth proportional to 28,004.32, 42,014.70 and 8,283.40 is: 12,427.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,004.32 : 42,014.70 = 8,283.40 : x
  2. Step 2: Convert to fraction form
    28,004.32/42,014.70 = 8,283.40/x
  3. Step 3: Cross multiply
    28,004.32x = 42,014.70 × 8,283.40
  4. Step 4: Simplify right side
    28,004.32x = 348,024,565.98
  5. Step 5: Solve for x
    x = 348,024,565.98/28,004.32
  6. Step 6: Final answer
    x = 12,427.53

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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.