Home / 28,423.47-39,223.62-16,486.05

Finding the Fourth Proportional to 28,423.47, 39,223.62 and 16,486.05

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Solution

The fourth proportional to 28,423.47, 39,223.62 and 16,486.05 is: 22,750.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.47 : 39,223.62 = 16,486.05 : x
  2. Step 2: Convert to fraction form
    28,423.47/39,223.62 = 16,486.05/x
  3. Step 3: Cross multiply
    28,423.47x = 39,223.62 × 16,486.05
  4. Step 4: Simplify right side
    28,423.47x = 646,642,560.50
  5. Step 5: Solve for x
    x = 646,642,560.50/28,423.47
  6. Step 6: Final answer
    x = 22,750.30

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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.