Home / 19,351.40-29,031.26-8,258.28

Finding the Fourth Proportional to 19,351.40, 29,031.26 and 8,258.28

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Solution

The fourth proportional to 19,351.40, 29,031.26 and 8,258.28 is: 12,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,351.40 : 29,031.26 = 8,258.28 : x
  2. Step 2: Convert to fraction form
    19,351.40/29,031.26 = 8,258.28/x
  3. Step 3: Cross multiply
    19,351.40x = 29,031.26 × 8,258.28
  4. Step 4: Simplify right side
    19,351.40x = 239,748,273.83
  5. Step 5: Solve for x
    x = 239,748,273.83/19,351.40
  6. Step 6: Final answer
    x = 12,389.20

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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.