Home / 21,528.40-32,283.60-19,314.16

Finding the Fourth Proportional to 21,528.40, 32,283.60 and 19,314.16

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Solution

The fourth proportional to 21,528.40, 32,283.60 and 19,314.16 is: 28,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.40 : 32,283.60 = 19,314.16 : x
  2. Step 2: Convert to fraction form
    21,528.40/32,283.60 = 19,314.16/x
  3. Step 3: Cross multiply
    21,528.40x = 32,283.60 × 19,314.16
  4. Step 4: Simplify right side
    21,528.40x = 623,530,615.78
  5. Step 5: Solve for x
    x = 623,530,615.78/21,528.40
  6. Step 6: Final answer
    x = 28,963.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.