Home / 25,728.63-38,587.55-7,256.31

Finding the Fourth Proportional to 25,728.63, 38,587.55 and 7,256.31

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Solution

The fourth proportional to 25,728.63, 38,587.55 and 7,256.31 is: 10,882.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.63 : 38,587.55 = 7,256.31 : x
  2. Step 2: Convert to fraction form
    25,728.63/38,587.55 = 7,256.31/x
  3. Step 3: Cross multiply
    25,728.63x = 38,587.55 × 7,256.31
  4. Step 4: Simplify right side
    25,728.63x = 280,003,312.34
  5. Step 5: Solve for x
    x = 280,003,312.34/25,728.63
  6. Step 6: Final answer
    x = 10,882.95

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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.