Home / 30,075.43-45,120.30-9,017.23

Finding the Fourth Proportional to 30,075.43, 45,120.30 and 9,017.23

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Solution

The fourth proportional to 30,075.43, 45,120.30 and 9,017.23 is: 13,527.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,075.43 : 45,120.30 = 9,017.23 : x
  2. Step 2: Convert to fraction form
    30,075.43/45,120.30 = 9,017.23/x
  3. Step 3: Cross multiply
    30,075.43x = 45,120.30 × 9,017.23
  4. Step 4: Simplify right side
    30,075.43x = 406,860,122.77
  5. Step 5: Solve for x
    x = 406,860,122.77/30,075.43
  6. Step 6: Final answer
    x = 13,527.99

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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.