Home / 19,389.45-29,029.40-15,810.36

Finding the Fourth Proportional to 19,389.45, 29,029.40 and 15,810.36

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Solution

The fourth proportional to 19,389.45, 29,029.40 and 15,810.36 is: 23,670.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.45 : 29,029.40 = 15,810.36 : x
  2. Step 2: Convert to fraction form
    19,389.45/29,029.40 = 15,810.36/x
  3. Step 3: Cross multiply
    19,389.45x = 29,029.40 × 15,810.36
  4. Step 4: Simplify right side
    19,389.45x = 458,965,264.58
  5. Step 5: Solve for x
    x = 458,965,264.58/19,389.45
  6. Step 6: Final answer
    x = 23,670.88

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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.