Home / 47,138.69-70,681.30-15,540.18

Finding the Fourth Proportional to 47,138.69, 70,681.30 and 15,540.18

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Solution

The fourth proportional to 47,138.69, 70,681.30 and 15,540.18 is: 23,301.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,138.69 : 70,681.30 = 15,540.18 : x
  2. Step 2: Convert to fraction form
    47,138.69/70,681.30 = 15,540.18/x
  3. Step 3: Cross multiply
    47,138.69x = 70,681.30 × 15,540.18
  4. Step 4: Simplify right side
    47,138.69x = 1,098,400,124.63
  5. Step 5: Solve for x
    x = 1,098,400,124.63/47,138.69
  6. Step 6: Final answer
    x = 23,301.46

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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.