Home / 28,055.23-42,070.52-10,512.79

Finding the Fourth Proportional to 28,055.23, 42,070.52 and 10,512.79

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Solution

The fourth proportional to 28,055.23, 42,070.52 and 10,512.79 is: 15,764.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.23 : 42,070.52 = 10,512.79 : x
  2. Step 2: Convert to fraction form
    28,055.23/42,070.52 = 10,512.79/x
  3. Step 3: Cross multiply
    28,055.23x = 42,070.52 × 10,512.79
  4. Step 4: Simplify right side
    28,055.23x = 442,278,463.06
  5. Step 5: Solve for x
    x = 442,278,463.06/28,055.23
  6. Step 6: Final answer
    x = 15,764.57

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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.