Home / 25,484.50-38,209.30-12,980.32

Finding the Fourth Proportional to 25,484.50, 38,209.30 and 12,980.32

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Solution

The fourth proportional to 25,484.50, 38,209.30 and 12,980.32 is: 19,461.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,484.50 : 38,209.30 = 12,980.32 : x
  2. Step 2: Convert to fraction form
    25,484.50/38,209.30 = 12,980.32/x
  3. Step 3: Cross multiply
    25,484.50x = 38,209.30 × 12,980.32
  4. Step 4: Simplify right side
    25,484.50x = 495,968,940.98
  5. Step 5: Solve for x
    x = 495,968,940.98/25,484.50
  6. Step 6: Final answer
    x = 19,461.59

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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.