Home / 28,303.74-42,440.97-12,708.06

Finding the Fourth Proportional to 28,303.74, 42,440.97 and 12,708.06

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Solution

The fourth proportional to 28,303.74, 42,440.97 and 12,708.06 is: 19,055.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.74 : 42,440.97 = 12,708.06 : x
  2. Step 2: Convert to fraction form
    28,303.74/42,440.97 = 12,708.06/x
  3. Step 3: Cross multiply
    28,303.74x = 42,440.97 × 12,708.06
  4. Step 4: Simplify right side
    28,303.74x = 539,342,393.22
  5. Step 5: Solve for x
    x = 539,342,393.22/28,303.74
  6. Step 6: Final answer
    x = 19,055.52

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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.