Home / 30,420.04-45,630.37-10,698.47

Finding the Fourth Proportional to 30,420.04, 45,630.37 and 10,698.47

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Solution

The fourth proportional to 30,420.04, 45,630.37 and 10,698.47 is: 16,047.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,420.04 : 45,630.37 = 10,698.47 : x
  2. Step 2: Convert to fraction form
    30,420.04/45,630.37 = 10,698.47/x
  3. Step 3: Cross multiply
    30,420.04x = 45,630.37 × 10,698.47
  4. Step 4: Simplify right side
    30,420.04x = 488,175,144.53
  5. Step 5: Solve for x
    x = 488,175,144.53/30,420.04
  6. Step 6: Final answer
    x = 16,047.81

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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.