Home / 28,055.70-42,083.13-13,054.42

Finding the Fourth Proportional to 28,055.70, 42,083.13 and 13,054.42

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Solution

The fourth proportional to 28,055.70, 42,083.13 and 13,054.42 is: 19,581.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.70 : 42,083.13 = 13,054.42 : x
  2. Step 2: Convert to fraction form
    28,055.70/42,083.13 = 13,054.42/x
  3. Step 3: Cross multiply
    28,055.70x = 42,083.13 × 13,054.42
  4. Step 4: Simplify right side
    28,055.70x = 549,370,812.66
  5. Step 5: Solve for x
    x = 549,370,812.66/28,055.70
  6. Step 6: Final answer
    x = 19,581.43

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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.