Home / 20,720.24-31,094.40-7,573.40

Finding the Fourth Proportional to 20,720.24, 31,094.40 and 7,573.40

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Solution

The fourth proportional to 20,720.24, 31,094.40 and 7,573.40 is: 11,365.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,720.24 : 31,094.40 = 7,573.40 : x
  2. Step 2: Convert to fraction form
    20,720.24/31,094.40 = 7,573.40/x
  3. Step 3: Cross multiply
    20,720.24x = 31,094.40 × 7,573.40
  4. Step 4: Simplify right side
    20,720.24x = 235,490,328.96
  5. Step 5: Solve for x
    x = 235,490,328.96/20,720.24
  6. Step 6: Final answer
    x = 11,365.23

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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.