Home / 31,399.25-47,089.50-10,335.40

Finding the Fourth Proportional to 31,399.25, 47,089.50 and 10,335.40

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Solution

The fourth proportional to 31,399.25, 47,089.50 and 10,335.40 is: 15,500.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.25 : 47,089.50 = 10,335.40 : x
  2. Step 2: Convert to fraction form
    31,399.25/47,089.50 = 10,335.40/x
  3. Step 3: Cross multiply
    31,399.25x = 47,089.50 × 10,335.40
  4. Step 4: Simplify right side
    31,399.25x = 486,688,719.96
  5. Step 5: Solve for x
    x = 486,688,719.96/31,399.25
  6. Step 6: Final answer
    x = 15,500.01

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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.