Home / 25,421.64-38,137.56-8,782.28

Finding the Fourth Proportional to 25,421.64, 38,137.56 and 8,782.28

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Solution

The fourth proportional to 25,421.64, 38,137.56 and 8,782.28 is: 13,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,421.64 : 38,137.56 = 8,782.28 : x
  2. Step 2: Convert to fraction form
    25,421.64/38,137.56 = 8,782.28/x
  3. Step 3: Cross multiply
    25,421.64x = 38,137.56 × 8,782.28
  4. Step 4: Simplify right side
    25,421.64x = 334,934,730.44
  5. Step 5: Solve for x
    x = 334,934,730.44/25,421.64
  6. Step 6: Final answer
    x = 13,175.18

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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.