Home / 25,668.56-35,389.68-21,052.40

Finding the Fourth Proportional to 25,668.56, 35,389.68 and 21,052.40

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Solution

The fourth proportional to 25,668.56, 35,389.68 and 21,052.40 is: 29,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,668.56 : 35,389.68 = 21,052.40 : x
  2. Step 2: Convert to fraction form
    25,668.56/35,389.68 = 21,052.40/x
  3. Step 3: Cross multiply
    25,668.56x = 35,389.68 × 21,052.40
  4. Step 4: Simplify right side
    25,668.56x = 745,037,699.23
  5. Step 5: Solve for x
    x = 745,037,699.23/25,668.56
  6. Step 6: Final answer
    x = 29,025.30

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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.