Home / 29,208.67-40,307.99-15,779.92

Finding the Fourth Proportional to 29,208.67, 40,307.99 and 15,779.92

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Solution

The fourth proportional to 29,208.67, 40,307.99 and 15,779.92 is: 21,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,208.67 : 40,307.99 = 15,779.92 : x
  2. Step 2: Convert to fraction form
    29,208.67/40,307.99 = 15,779.92/x
  3. Step 3: Cross multiply
    29,208.67x = 40,307.99 × 15,779.92
  4. Step 4: Simplify right side
    29,208.67x = 636,056,753.47
  5. Step 5: Solve for x
    x = 636,056,753.47/29,208.67
  6. Step 6: Final answer
    x = 21,776.30

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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.