Home / 25,965.45-38,920.36-18,547.41

Finding the Fourth Proportional to 25,965.45, 38,920.36 and 18,547.41

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Solution

The fourth proportional to 25,965.45, 38,920.36 and 18,547.41 is: 27,801.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,965.45 : 38,920.36 = 18,547.41 : x
  2. Step 2: Convert to fraction form
    25,965.45/38,920.36 = 18,547.41/x
  3. Step 3: Cross multiply
    25,965.45x = 38,920.36 × 18,547.41
  4. Step 4: Simplify right side
    25,965.45x = 721,871,874.27
  5. Step 5: Solve for x
    x = 721,871,874.27/25,965.45
  6. Step 6: Final answer
    x = 27,801.25

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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.