Home / 28,893.90-43,312.05-13,284.30

Finding the Fourth Proportional to 28,893.90, 43,312.05 and 13,284.30

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Solution

The fourth proportional to 28,893.90, 43,312.05 and 13,284.30 is: 19,913.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,893.90 : 43,312.05 = 13,284.30 : x
  2. Step 2: Convert to fraction form
    28,893.90/43,312.05 = 13,284.30/x
  3. Step 3: Cross multiply
    28,893.90x = 43,312.05 × 13,284.30
  4. Step 4: Simplify right side
    28,893.90x = 575,370,265.82
  5. Step 5: Solve for x
    x = 575,370,265.82/28,893.90
  6. Step 6: Final answer
    x = 19,913.21

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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.