Home / 22,762.79-31,245.53-20,188.62

Finding the Fourth Proportional to 22,762.79, 31,245.53 and 20,188.62

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Solution

The fourth proportional to 22,762.79, 31,245.53 and 20,188.62 is: 27,712.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,762.79 : 31,245.53 = 20,188.62 : x
  2. Step 2: Convert to fraction form
    22,762.79/31,245.53 = 20,188.62/x
  3. Step 3: Cross multiply
    22,762.79x = 31,245.53 × 20,188.62
  4. Step 4: Simplify right side
    22,762.79x = 630,804,299.51
  5. Step 5: Solve for x
    x = 630,804,299.51/22,762.79
  6. Step 6: Final answer
    x = 27,712.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.