Home / 28,903.68-39,889.52-16,330.72

Finding the Fourth Proportional to 28,903.68, 39,889.52 and 16,330.72

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Solution

The fourth proportional to 28,903.68, 39,889.52 and 16,330.72 is: 22,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.68 : 39,889.52 = 16,330.72 : x
  2. Step 2: Convert to fraction form
    28,903.68/39,889.52 = 16,330.72/x
  3. Step 3: Cross multiply
    28,903.68x = 39,889.52 × 16,330.72
  4. Step 4: Simplify right side
    28,903.68x = 651,424,582.05
  5. Step 5: Solve for x
    x = 651,424,582.05/28,903.68
  6. Step 6: Final answer
    x = 22,537.77

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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.