Home / 25,570.84-38,310.18-21,406.36

Finding the Fourth Proportional to 25,570.84, 38,310.18 and 21,406.36

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Solution

The fourth proportional to 25,570.84, 38,310.18 and 21,406.36 is: 32,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,570.84 : 38,310.18 = 21,406.36 : x
  2. Step 2: Convert to fraction form
    25,570.84/38,310.18 = 21,406.36/x
  3. Step 3: Cross multiply
    25,570.84x = 38,310.18 × 21,406.36
  4. Step 4: Simplify right side
    25,570.84x = 820,081,504.74
  5. Step 5: Solve for x
    x = 820,081,504.74/25,570.84
  6. Step 6: Final answer
    x = 32,070.96

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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.