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Finding the Fourth Proportional to 22,420.88, 33,748.22 and 19,038.32

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Solution

The fourth proportional to 22,420.88, 33,748.22 and 19,038.32 is: 28,656.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.88 : 33,748.22 = 19,038.32 : x
  2. Step 2: Convert to fraction form
    22,420.88/33,748.22 = 19,038.32/x
  3. Step 3: Cross multiply
    22,420.88x = 33,748.22 × 19,038.32
  4. Step 4: Simplify right side
    22,420.88x = 642,509,411.79
  5. Step 5: Solve for x
    x = 642,509,411.79/22,420.88
  6. Step 6: Final answer
    x = 28,656.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.