Home / 29,699.19-40,988.43-18,376.20

Finding the Fourth Proportional to 29,699.19, 40,988.43 and 18,376.20

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Solution

The fourth proportional to 29,699.19, 40,988.43 and 18,376.20 is: 25,361.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,699.19 : 40,988.43 = 18,376.20 : x
  2. Step 2: Convert to fraction form
    29,699.19/40,988.43 = 18,376.20/x
  3. Step 3: Cross multiply
    29,699.19x = 40,988.43 × 18,376.20
  4. Step 4: Simplify right side
    29,699.19x = 753,211,587.37
  5. Step 5: Solve for x
    x = 753,211,587.37/29,699.19
  6. Step 6: Final answer
    x = 25,361.35

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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.