Home / 30,075.75-45,113.63-9,299.25

Finding the Fourth Proportional to 30,075.75, 45,113.63 and 9,299.25

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Solution

The fourth proportional to 30,075.75, 45,113.63 and 9,299.25 is: 13,948.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,075.75 : 45,113.63 = 9,299.25 : x
  2. Step 2: Convert to fraction form
    30,075.75/45,113.63 = 9,299.25/x
  3. Step 3: Cross multiply
    30,075.75x = 45,113.63 × 9,299.25
  4. Step 4: Simplify right side
    30,075.75x = 419,522,877.28
  5. Step 5: Solve for x
    x = 419,522,877.28/30,075.75
  6. Step 6: Final answer
    x = 13,948.88

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Double scale
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Similar ratio
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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.