Home / 30,638.31-42,277.15-17,026.28

Finding the Fourth Proportional to 30,638.31, 42,277.15 and 17,026.28

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Solution

The fourth proportional to 30,638.31, 42,277.15 and 17,026.28 is: 23,494.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638.31 : 42,277.15 = 17,026.28 : x
  2. Step 2: Convert to fraction form
    30,638.31/42,277.15 = 17,026.28/x
  3. Step 3: Cross multiply
    30,638.31x = 42,277.15 × 17,026.28
  4. Step 4: Simplify right side
    30,638.31x = 719,822,577.36
  5. Step 5: Solve for x
    x = 719,822,577.36/30,638.31
  6. Step 6: Final answer
    x = 23,494.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.