Home / 30,075.48-45,111.57-10,353.60

Finding the Fourth Proportional to 30,075.48, 45,111.57 and 10,353.60

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Solution

The fourth proportional to 30,075.48, 45,111.57 and 10,353.60 is: 15,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,075.48 : 45,111.57 = 10,353.60 : x
  2. Step 2: Convert to fraction form
    30,075.48/45,111.57 = 10,353.60/x
  3. Step 3: Cross multiply
    30,075.48x = 45,111.57 × 10,353.60
  4. Step 4: Simplify right side
    30,075.48x = 467,067,151.15
  5. Step 5: Solve for x
    x = 467,067,151.15/30,075.48
  6. Step 6: Final answer
    x = 15,529.83

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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.