Home / 30,075.32-45,113.14-7,888.48

Finding the Fourth Proportional to 30,075.32, 45,113.14 and 7,888.48

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Solution

The fourth proportional to 30,075.32, 45,113.14 and 7,888.48 is: 11,832.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,075.32 : 45,113.14 = 7,888.48 : x
  2. Step 2: Convert to fraction form
    30,075.32/45,113.14 = 7,888.48/x
  3. Step 3: Cross multiply
    30,075.32x = 45,113.14 × 7,888.48
  4. Step 4: Simplify right side
    30,075.32x = 355,874,102.63
  5. Step 5: Solve for x
    x = 355,874,102.63/30,075.32
  6. Step 6: Final answer
    x = 11,832.76

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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.