Home / 28,049.40-42,075.18-7,272.36

Finding the Fourth Proportional to 28,049.40, 42,075.18 and 7,272.36

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Solution

The fourth proportional to 28,049.40, 42,075.18 and 7,272.36 is: 10,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.40 : 42,075.18 = 7,272.36 : x
  2. Step 2: Convert to fraction form
    28,049.40/42,075.18 = 7,272.36/x
  3. Step 3: Cross multiply
    28,049.40x = 42,075.18 × 7,272.36
  4. Step 4: Simplify right side
    28,049.40x = 305,985,856.02
  5. Step 5: Solve for x
    x = 305,985,856.02/28,049.40
  6. Step 6: Final answer
    x = 10,908.82

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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.