Home / 28,931.50-39,921.42-16,184.02

Finding the Fourth Proportional to 28,931.50, 39,921.42 and 16,184.02

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Solution

The fourth proportional to 28,931.50, 39,921.42 and 16,184.02 is: 22,331.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,931.50 : 39,921.42 = 16,184.02 : x
  2. Step 2: Convert to fraction form
    28,931.50/39,921.42 = 16,184.02/x
  3. Step 3: Cross multiply
    28,931.50x = 39,921.42 × 16,184.02
  4. Step 4: Simplify right side
    28,931.50x = 646,089,059.71
  5. Step 5: Solve for x
    x = 646,089,059.71/28,931.50
  6. Step 6: Final answer
    x = 22,331.68

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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.