Home / 38,431.40-57,647.10-10,729.40

Finding the Fourth Proportional to 38,431.40, 57,647.10 and 10,729.40

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Solution

The fourth proportional to 38,431.40, 57,647.10 and 10,729.40 is: 16,094.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,431.40 : 57,647.10 = 10,729.40 : x
  2. Step 2: Convert to fraction form
    38,431.40/57,647.10 = 10,729.40/x
  3. Step 3: Cross multiply
    38,431.40x = 57,647.10 × 10,729.40
  4. Step 4: Simplify right side
    38,431.40x = 618,518,794.74
  5. Step 5: Solve for x
    x = 618,518,794.74/38,431.40
  6. Step 6: Final answer
    x = 16,094.10

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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.