Home / 30,033.60-41,431.68-19,432.32

Finding the Fourth Proportional to 30,033.60, 41,431.68 and 19,432.32

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Solution

The fourth proportional to 30,033.60, 41,431.68 and 19,432.32 is: 26,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,033.60 : 41,431.68 = 19,432.32 : x
  2. Step 2: Convert to fraction form
    30,033.60/41,431.68 = 19,432.32/x
  3. Step 3: Cross multiply
    30,033.60x = 41,431.68 × 19,432.32
  4. Step 4: Simplify right side
    30,033.60x = 805,113,663.90
  5. Step 5: Solve for x
    x = 805,113,663.90/30,033.60
  6. Step 6: Final answer
    x = 26,807.10

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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.