Home / 28,056.72-42,075.95-9,331.73

Finding the Fourth Proportional to 28,056.72, 42,075.95 and 9,331.73

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Solution

The fourth proportional to 28,056.72, 42,075.95 and 9,331.73 is: 13,994.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,056.72 : 42,075.95 = 9,331.73 : x
  2. Step 2: Convert to fraction form
    28,056.72/42,075.95 = 9,331.73/x
  3. Step 3: Cross multiply
    28,056.72x = 42,075.95 × 9,331.73
  4. Step 4: Simplify right side
    28,056.72x = 392,641,147.86
  5. Step 5: Solve for x
    x = 392,641,147.86/28,056.72
  6. Step 6: Final answer
    x = 13,994.55

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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.