Home / 47,087.18-70,640.49-13,808.30

Finding the Fourth Proportional to 47,087.18, 70,640.49 and 13,808.30

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Solution

The fourth proportional to 47,087.18, 70,640.49 and 13,808.30 is: 20,715.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,087.18 : 70,640.49 = 13,808.30 : x
  2. Step 2: Convert to fraction form
    47,087.18/70,640.49 = 13,808.30/x
  3. Step 3: Cross multiply
    47,087.18x = 70,640.49 × 13,808.30
  4. Step 4: Simplify right side
    47,087.18x = 975,425,078.07
  5. Step 5: Solve for x
    x = 975,425,078.07/47,087.18
  6. Step 6: Final answer
    x = 20,715.30

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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.