Home / 30,817.77-42,528.56-19,492.16

Finding the Fourth Proportional to 30,817.77, 42,528.56 and 19,492.16

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Solution

The fourth proportional to 30,817.77, 42,528.56 and 19,492.16 is: 26,899.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,817.77 : 42,528.56 = 19,492.16 : x
  2. Step 2: Convert to fraction form
    30,817.77/42,528.56 = 19,492.16/x
  3. Step 3: Cross multiply
    30,817.77x = 42,528.56 × 19,492.16
  4. Step 4: Simplify right side
    30,817.77x = 828,973,185.99
  5. Step 5: Solve for x
    x = 828,973,185.99/30,817.77
  6. Step 6: Final answer
    x = 26,899.19

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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.