Home / 25,641.03-38,394.40-20,616.70

Finding the Fourth Proportional to 25,641.03, 38,394.40 and 20,616.70

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Solution

The fourth proportional to 25,641.03, 38,394.40 and 20,616.70 is: 30,871.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,641.03 : 38,394.40 = 20,616.70 : x
  2. Step 2: Convert to fraction form
    25,641.03/38,394.40 = 20,616.70/x
  3. Step 3: Cross multiply
    25,641.03x = 38,394.40 × 20,616.70
  4. Step 4: Simplify right side
    25,641.03x = 791,565,826.48
  5. Step 5: Solve for x
    x = 791,565,826.48/25,641.03
  6. Step 6: Final answer
    x = 30,871.06

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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.