Home / 28,420.22-39,220.26-16,484.06

Finding the Fourth Proportional to 28,420.22, 39,220.26 and 16,484.06

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Solution

The fourth proportional to 28,420.22, 39,220.26 and 16,484.06 is: 22,748.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420.22 : 39,220.26 = 16,484.06 : x
  2. Step 2: Convert to fraction form
    28,420.22/39,220.26 = 16,484.06/x
  3. Step 3: Cross multiply
    28,420.22x = 39,220.26 × 16,484.06
  4. Step 4: Simplify right side
    28,420.22x = 646,509,119.06
  5. Step 5: Solve for x
    x = 646,509,119.06/28,420.22
  6. Step 6: Final answer
    x = 22,748.21

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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.