Home / 28,108.26-42,156.98-13,111.24

Finding the Fourth Proportional to 28,108.26, 42,156.98 and 13,111.24

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Solution

The fourth proportional to 28,108.26, 42,156.98 and 13,111.24 is: 19,664.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,108.26 : 42,156.98 = 13,111.24 : x
  2. Step 2: Convert to fraction form
    28,108.26/42,156.98 = 13,111.24/x
  3. Step 3: Cross multiply
    28,108.26x = 42,156.98 × 13,111.24
  4. Step 4: Simplify right side
    28,108.26x = 552,730,282.46
  5. Step 5: Solve for x
    x = 552,730,282.46/28,108.26
  6. Step 6: Final answer
    x = 19,664.34

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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.