Home / 28,040.90-42,071.60-13,055.14

Finding the Fourth Proportional to 28,040.90, 42,071.60 and 13,055.14

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Solution

The fourth proportional to 28,040.90, 42,071.60 and 13,055.14 is: 19,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040.90 : 42,071.60 = 13,055.14 : x
  2. Step 2: Convert to fraction form
    28,040.90/42,071.60 = 13,055.14/x
  3. Step 3: Cross multiply
    28,040.90x = 42,071.60 × 13,055.14
  4. Step 4: Simplify right side
    28,040.90x = 549,250,628.02
  5. Step 5: Solve for x
    x = 549,250,628.02/28,040.90
  6. Step 6: Final answer
    x = 19,587.48

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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.