Home / 36,140.86-49,864.91-20,823.65

Finding the Fourth Proportional to 36,140.86, 49,864.91 and 20,823.65

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Solution

The fourth proportional to 36,140.86, 49,864.91 and 20,823.65 is: 28,731.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,140.86 : 49,864.91 = 20,823.65 : x
  2. Step 2: Convert to fraction form
    36,140.86/49,864.91 = 20,823.65/x
  3. Step 3: Cross multiply
    36,140.86x = 49,864.91 × 20,823.65
  4. Step 4: Simplify right side
    36,140.86x = 1,038,369,433.12
  5. Step 5: Solve for x
    x = 1,038,369,433.12/36,140.86
  6. Step 6: Final answer
    x = 28,731.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.