Home / 30,289.02-45,435.57-10,300.53

Finding the Fourth Proportional to 30,289.02, 45,435.57 and 10,300.53

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Solution

The fourth proportional to 30,289.02, 45,435.57 and 10,300.53 is: 15,451.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,289.02 : 45,435.57 = 10,300.53 : x
  2. Step 2: Convert to fraction form
    30,289.02/45,435.57 = 10,300.53/x
  3. Step 3: Cross multiply
    30,289.02x = 45,435.57 × 10,300.53
  4. Step 4: Simplify right side
    30,289.02x = 468,010,451.85
  5. Step 5: Solve for x
    x = 468,010,451.85/30,289.02
  6. Step 6: Final answer
    x = 15,451.49

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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.