Home / 20,389.94-30,535.52-10,368.32

Finding the Fourth Proportional to 20,389.94, 30,535.52 and 10,368.32

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Solution

The fourth proportional to 20,389.94, 30,535.52 and 10,368.32 is: 15,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,389.94 : 30,535.52 = 10,368.32 : x
  2. Step 2: Convert to fraction form
    20,389.94/30,535.52 = 10,368.32/x
  3. Step 3: Cross multiply
    20,389.94x = 30,535.52 × 10,368.32
  4. Step 4: Simplify right side
    20,389.94x = 316,601,838.21
  5. Step 5: Solve for x
    x = 316,601,838.21/20,389.94
  6. Step 6: Final answer
    x = 15,527.36

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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.