Home / 25,911.40-38,810.66-15,885.80

Finding the Fourth Proportional to 25,911.40, 38,810.66 and 15,885.80

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Solution

The fourth proportional to 25,911.40, 38,810.66 and 15,885.80 is: 23,794.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911.40 : 38,810.66 = 15,885.80 : x
  2. Step 2: Convert to fraction form
    25,911.40/38,810.66 = 15,885.80/x
  3. Step 3: Cross multiply
    25,911.40x = 38,810.66 × 15,885.80
  4. Step 4: Simplify right side
    25,911.40x = 616,538,382.63
  5. Step 5: Solve for x
    x = 616,538,382.63/25,911.40
  6. Step 6: Final answer
    x = 23,794.10

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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.