Home / 21,569.78-32,344.43-7,528.12

Finding the Fourth Proportional to 21,569.78, 32,344.43 and 7,528.12

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Solution

The fourth proportional to 21,569.78, 32,344.43 and 7,528.12 is: 11,288.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.78 : 32,344.43 = 7,528.12 : x
  2. Step 2: Convert to fraction form
    21,569.78/32,344.43 = 7,528.12/x
  3. Step 3: Cross multiply
    21,569.78x = 32,344.43 × 7,528.12
  4. Step 4: Simplify right side
    21,569.78x = 243,492,631.87
  5. Step 5: Solve for x
    x = 243,492,631.87/21,569.78
  6. Step 6: Final answer
    x = 11,288.60

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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.