Home / 21,328.75-32,004.65-10,384.75

Finding the Fourth Proportional to 21,328.75, 32,004.65 and 10,384.75

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Solution

The fourth proportional to 21,328.75, 32,004.65 and 10,384.75 is: 15,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,328.75 : 32,004.65 = 10,384.75 : x
  2. Step 2: Convert to fraction form
    21,328.75/32,004.65 = 10,384.75/x
  3. Step 3: Cross multiply
    21,328.75x = 32,004.65 × 10,384.75
  4. Step 4: Simplify right side
    21,328.75x = 332,360,289.09
  5. Step 5: Solve for x
    x = 332,360,289.09/21,328.75
  6. Step 6: Final answer
    x = 15,582.74

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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.