Home / 31,425.03-47,130.26-11,712.87

Finding the Fourth Proportional to 31,425.03, 47,130.26 and 11,712.87

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Solution

The fourth proportional to 31,425.03, 47,130.26 and 11,712.87 is: 17,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,425.03 : 47,130.26 = 11,712.87 : x
  2. Step 2: Convert to fraction form
    31,425.03/47,130.26 = 11,712.87/x
  3. Step 3: Cross multiply
    31,425.03x = 47,130.26 × 11,712.87
  4. Step 4: Simplify right side
    31,425.03x = 552,030,549.88
  5. Step 5: Solve for x
    x = 552,030,549.88/31,425.03
  6. Step 6: Final answer
    x = 17,566.59

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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.