Home / 20,203.02-30,318.36-7,055.40

Finding the Fourth Proportional to 20,203.02, 30,318.36 and 7,055.40

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Solution

The fourth proportional to 20,203.02, 30,318.36 and 7,055.40 is: 10,587.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.02 : 30,318.36 = 7,055.40 : x
  2. Step 2: Convert to fraction form
    20,203.02/30,318.36 = 7,055.40/x
  3. Step 3: Cross multiply
    20,203.02x = 30,318.36 × 7,055.40
  4. Step 4: Simplify right side
    20,203.02x = 213,908,157.14
  5. Step 5: Solve for x
    x = 213,908,157.14/20,203.02
  6. Step 6: Final answer
    x = 10,587.93

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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.