Home / 31,503.60-47,255.40-19,037.70

Finding the Fourth Proportional to 31,503.60, 47,255.40 and 19,037.70

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Solution

The fourth proportional to 31,503.60, 47,255.40 and 19,037.70 is: 28,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,503.60 : 47,255.40 = 19,037.70 : x
  2. Step 2: Convert to fraction form
    31,503.60/47,255.40 = 19,037.70/x
  3. Step 3: Cross multiply
    31,503.60x = 47,255.40 × 19,037.70
  4. Step 4: Simplify right side
    31,503.60x = 899,634,128.58
  5. Step 5: Solve for x
    x = 899,634,128.58/31,503.60
  6. Step 6: Final answer
    x = 28,556.55

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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.