Home / 30,483.36-42,075.18-28,624.68

Finding the Fourth Proportional to 30,483.36, 42,075.18 and 28,624.68

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Solution

The fourth proportional to 30,483.36, 42,075.18 and 28,624.68 is: 39,509.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.36 : 42,075.18 = 28,624.68 : x
  2. Step 2: Convert to fraction form
    30,483.36/42,075.18 = 28,624.68/x
  3. Step 3: Cross multiply
    30,483.36x = 42,075.18 × 28,624.68
  4. Step 4: Simplify right side
    30,483.36x = 1,204,388,563.44
  5. Step 5: Solve for x
    x = 1,204,388,563.44/30,483.36
  6. Step 6: Final answer
    x = 39,509.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.