Home / 30,111.76-45,168.02-14,318.28

Finding the Fourth Proportional to 30,111.76, 45,168.02 and 14,318.28

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Solution

The fourth proportional to 30,111.76, 45,168.02 and 14,318.28 is: 21,477.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,111.76 : 45,168.02 = 14,318.28 : x
  2. Step 2: Convert to fraction form
    30,111.76/45,168.02 = 14,318.28/x
  3. Step 3: Cross multiply
    30,111.76x = 45,168.02 × 14,318.28
  4. Step 4: Simplify right side
    30,111.76x = 646,728,357.41
  5. Step 5: Solve for x
    x = 646,728,357.41/30,111.76
  6. Step 6: Final answer
    x = 21,477.60

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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.