Home / 28,987.99-43,402.93-21,946.70

Finding the Fourth Proportional to 28,987.99, 43,402.93 and 21,946.70

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Solution

The fourth proportional to 28,987.99, 43,402.93 and 21,946.70 is: 32,860.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.99 : 43,402.93 = 21,946.70 : x
  2. Step 2: Convert to fraction form
    28,987.99/43,402.93 = 21,946.70/x
  3. Step 3: Cross multiply
    28,987.99x = 43,402.93 × 21,946.70
  4. Step 4: Simplify right side
    28,987.99x = 952,551,083.83
  5. Step 5: Solve for x
    x = 952,551,083.83/28,987.99
  6. Step 6: Final answer
    x = 32,860.20

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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.