Home / 19,055.20-28,420.76-16,112.20

Finding the Fourth Proportional to 19,055.20, 28,420.76 and 16,112.20

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Solution

The fourth proportional to 19,055.20, 28,420.76 and 16,112.20 is: 24,031.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,055.20 : 28,420.76 = 16,112.20 : x
  2. Step 2: Convert to fraction form
    19,055.20/28,420.76 = 16,112.20/x
  3. Step 3: Cross multiply
    19,055.20x = 28,420.76 × 16,112.20
  4. Step 4: Simplify right side
    19,055.20x = 457,920,969.27
  5. Step 5: Solve for x
    x = 457,920,969.27/19,055.20
  6. Step 6: Final answer
    x = 24,031.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.