Home / 28,031.16-42,045.82-11,386.26

Finding the Fourth Proportional to 28,031.16, 42,045.82 and 11,386.26

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Solution

The fourth proportional to 28,031.16, 42,045.82 and 11,386.26 is: 17,079.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.16 : 42,045.82 = 11,386.26 : x
  2. Step 2: Convert to fraction form
    28,031.16/42,045.82 = 11,386.26/x
  3. Step 3: Cross multiply
    28,031.16x = 42,045.82 × 11,386.26
  4. Step 4: Simplify right side
    28,031.16x = 478,744,638.43
  5. Step 5: Solve for x
    x = 478,744,638.43/28,031.16
  6. Step 6: Final answer
    x = 17,079.02

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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.