Home / 25,625.09-38,357.65-18,878.30

Finding the Fourth Proportional to 25,625.09, 38,357.65 and 18,878.30

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Solution

The fourth proportional to 25,625.09, 38,357.65 and 18,878.30 is: 28,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,625.09 : 38,357.65 = 18,878.30 : x
  2. Step 2: Convert to fraction form
    25,625.09/38,357.65 = 18,878.30/x
  3. Step 3: Cross multiply
    25,625.09x = 38,357.65 × 18,878.30
  4. Step 4: Simplify right side
    25,625.09x = 724,127,199.65
  5. Step 5: Solve for x
    x = 724,127,199.65/25,625.09
  6. Step 6: Final answer
    x = 28,258.52

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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.