Home / 20,720.69-31,076.55-5,925.63

Finding the Fourth Proportional to 20,720.69, 31,076.55 and 5,925.63

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Solution

The fourth proportional to 20,720.69, 31,076.55 and 5,925.63 is: 8,887.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,720.69 : 31,076.55 = 5,925.63 : x
  2. Step 2: Convert to fraction form
    20,720.69/31,076.55 = 5,925.63/x
  3. Step 3: Cross multiply
    20,720.69x = 31,076.55 × 5,925.63
  4. Step 4: Simplify right side
    20,720.69x = 184,148,136.98
  5. Step 5: Solve for x
    x = 184,148,136.98/20,720.69
  6. Step 6: Final answer
    x = 8,887.16

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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.