Home / 20,372.40-30,567.06-18,737.64

Finding the Fourth Proportional to 20,372.40, 30,567.06 and 18,737.64

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Solution

The fourth proportional to 20,372.40, 30,567.06 and 18,737.64 is: 28,114.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.40 : 30,567.06 = 18,737.64 : x
  2. Step 2: Convert to fraction form
    20,372.40/30,567.06 = 18,737.64/x
  3. Step 3: Cross multiply
    20,372.40x = 30,567.06 × 18,737.64
  4. Step 4: Simplify right side
    20,372.40x = 572,754,566.14
  5. Step 5: Solve for x
    x = 572,754,566.14/20,372.40
  6. Step 6: Final answer
    x = 28,114.24

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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.