Home / 19,931.58-29,915.80-10,077.73

Finding the Fourth Proportional to 19,931.58, 29,915.80 and 10,077.73

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Solution

The fourth proportional to 19,931.58, 29,915.80 and 10,077.73 is: 15,125.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.58 : 29,915.80 = 10,077.73 : x
  2. Step 2: Convert to fraction form
    19,931.58/29,915.80 = 10,077.73/x
  3. Step 3: Cross multiply
    19,931.58x = 29,915.80 × 10,077.73
  4. Step 4: Simplify right side
    19,931.58x = 301,483,255.15
  5. Step 5: Solve for x
    x = 301,483,255.15/19,931.58
  6. Step 6: Final answer
    x = 15,125.91

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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.