Home / 28,519.36-42,738.48-13,510.48

Finding the Fourth Proportional to 28,519.36, 42,738.48 and 13,510.48

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Solution

The fourth proportional to 28,519.36, 42,738.48 and 13,510.48 is: 20,246.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,519.36 : 42,738.48 = 13,510.48 : x
  2. Step 2: Convert to fraction form
    28,519.36/42,738.48 = 13,510.48/x
  3. Step 3: Cross multiply
    28,519.36x = 42,738.48 × 13,510.48
  4. Step 4: Simplify right side
    28,519.36x = 577,417,379.27
  5. Step 5: Solve for x
    x = 577,417,379.27/28,519.36
  6. Step 6: Final answer
    x = 20,246.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.