Home / 34,732.80-47,931.38-18,817.21

Finding the Fourth Proportional to 34,732.80, 47,931.38 and 18,817.21

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Solution

The fourth proportional to 34,732.80, 47,931.38 and 18,817.21 is: 25,967.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,732.80 : 47,931.38 = 18,817.21 : x
  2. Step 2: Convert to fraction form
    34,732.80/47,931.38 = 18,817.21/x
  3. Step 3: Cross multiply
    34,732.80x = 47,931.38 × 18,817.21
  4. Step 4: Simplify right side
    34,732.80x = 901,934,509.31
  5. Step 5: Solve for x
    x = 901,934,509.31/34,732.80
  6. Step 6: Final answer
    x = 25,967.81

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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.