Home / 20,943.08-31,389.04-9,834.94

Finding the Fourth Proportional to 20,943.08, 31,389.04 and 9,834.94

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Solution

The fourth proportional to 20,943.08, 31,389.04 and 9,834.94 is: 14,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.08 : 31,389.04 = 9,834.94 : x
  2. Step 2: Convert to fraction form
    20,943.08/31,389.04 = 9,834.94/x
  3. Step 3: Cross multiply
    20,943.08x = 31,389.04 × 9,834.94
  4. Step 4: Simplify right side
    20,943.08x = 308,709,325.06
  5. Step 5: Solve for x
    x = 308,709,325.06/20,943.08
  6. Step 6: Final answer
    x = 14,740.40

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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.