Home / 19,779.61-29,671.86-7,299.70

Finding the Fourth Proportional to 19,779.61, 29,671.86 and 7,299.70

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Solution

The fourth proportional to 19,779.61, 29,671.86 and 7,299.70 is: 10,950.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,779.61 : 29,671.86 = 7,299.70 : x
  2. Step 2: Convert to fraction form
    19,779.61/29,671.86 = 7,299.70/x
  3. Step 3: Cross multiply
    19,779.61x = 29,671.86 × 7,299.70
  4. Step 4: Simplify right side
    19,779.61x = 216,595,676.44
  5. Step 5: Solve for x
    x = 216,595,676.44/19,779.61
  6. Step 6: Final answer
    x = 10,950.45

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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.