Home / 21,432.05-32,152.67-10,903.54

Finding the Fourth Proportional to 21,432.05, 32,152.67 and 10,903.54

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Solution

The fourth proportional to 21,432.05, 32,152.67 and 10,903.54 is: 16,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432.05 : 32,152.67 = 10,903.54 : x
  2. Step 2: Convert to fraction form
    21,432.05/32,152.67 = 10,903.54/x
  3. Step 3: Cross multiply
    21,432.05x = 32,152.67 × 10,903.54
  4. Step 4: Simplify right side
    21,432.05x = 350,577,923.45
  5. Step 5: Solve for x
    x = 350,577,923.45/21,432.05
  6. Step 6: Final answer
    x = 16,357.65

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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.