Home / 34,156.18-47,130.81-20,013.46

Finding the Fourth Proportional to 34,156.18, 47,130.81 and 20,013.46

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Solution

The fourth proportional to 34,156.18, 47,130.81 and 20,013.46 is: 27,615.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,156.18 : 47,130.81 = 20,013.46 : x
  2. Step 2: Convert to fraction form
    34,156.18/47,130.81 = 20,013.46/x
  3. Step 3: Cross multiply
    34,156.18x = 47,130.81 × 20,013.46
  4. Step 4: Simplify right side
    34,156.18x = 943,250,580.70
  5. Step 5: Solve for x
    x = 943,250,580.70/34,156.18
  6. Step 6: Final answer
    x = 27,615.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.