Home / 15,034.48-20,744.71-9,728.58

Finding the Fourth Proportional to 15,034.48, 20,744.71 and 9,728.58

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Solution

The fourth proportional to 15,034.48, 20,744.71 and 9,728.58 is: 13,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,034.48 : 20,744.71 = 9,728.58 : x
  2. Step 2: Convert to fraction form
    15,034.48/20,744.71 = 9,728.58/x
  3. Step 3: Cross multiply
    15,034.48x = 20,744.71 × 9,728.58
  4. Step 4: Simplify right side
    15,034.48x = 201,816,570.81
  5. Step 5: Solve for x
    x = 201,816,570.81/15,034.48
  6. Step 6: Final answer
    x = 13,423.58

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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.