Home / 55,391.96-83,085.18-20,328.86

Finding the Fourth Proportional to 55,391.96, 83,085.18 and 20,328.86

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Solution

The fourth proportional to 55,391.96, 83,085.18 and 20,328.86 is: 30,492.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,391.96 : 83,085.18 = 20,328.86 : x
  2. Step 2: Convert to fraction form
    55,391.96/83,085.18 = 20,328.86/x
  3. Step 3: Cross multiply
    55,391.96x = 83,085.18 × 20,328.86
  4. Step 4: Simplify right side
    55,391.96x = 1,689,026,992.29
  5. Step 5: Solve for x
    x = 1,689,026,992.29/55,391.96
  6. Step 6: Final answer
    x = 30,492.28

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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.