Home / 31,528.40-43,522.44-18,954.32

Finding the Fourth Proportional to 31,528.40, 43,522.44 and 18,954.32

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Solution

The fourth proportional to 31,528.40, 43,522.44 and 18,954.32 is: 26,164.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.40 : 43,522.44 = 18,954.32 : x
  2. Step 2: Convert to fraction form
    31,528.40/43,522.44 = 18,954.32/x
  3. Step 3: Cross multiply
    31,528.40x = 43,522.44 × 18,954.32
  4. Step 4: Simplify right side
    31,528.40x = 824,938,254.94
  5. Step 5: Solve for x
    x = 824,938,254.94/31,528.40
  6. Step 6: Final answer
    x = 26,164.93

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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.