Home / 31,341.62-47,018.52-9,155.10

Finding the Fourth Proportional to 31,341.62, 47,018.52 and 9,155.10

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Solution

The fourth proportional to 31,341.62, 47,018.52 and 9,155.10 is: 13,734.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,341.62 : 47,018.52 = 9,155.10 : x
  2. Step 2: Convert to fraction form
    31,341.62/47,018.52 = 9,155.10/x
  3. Step 3: Cross multiply
    31,341.62x = 47,018.52 × 9,155.10
  4. Step 4: Simplify right side
    31,341.62x = 430,459,252.45
  5. Step 5: Solve for x
    x = 430,459,252.45/31,341.62
  6. Step 6: Final answer
    x = 13,734.43

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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.