Home / 28,779.90-43,155.06-13,184.16

Finding the Fourth Proportional to 28,779.90, 43,155.06 and 13,184.16

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Solution

The fourth proportional to 28,779.90, 43,155.06 and 13,184.16 is: 19,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.90 : 43,155.06 = 13,184.16 : x
  2. Step 2: Convert to fraction form
    28,779.90/43,155.06 = 13,184.16/x
  3. Step 3: Cross multiply
    28,779.90x = 43,155.06 × 13,184.16
  4. Step 4: Simplify right side
    28,779.90x = 568,963,215.85
  5. Step 5: Solve for x
    x = 568,963,215.85/28,779.90
  6. Step 6: Final answer
    x = 19,769.46

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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.