Home / 28,615.92-39,492.36-15,873.10

Finding the Fourth Proportional to 28,615.92, 39,492.36 and 15,873.10

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Solution

The fourth proportional to 28,615.92, 39,492.36 and 15,873.10 is: 21,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,615.92 : 39,492.36 = 15,873.10 : x
  2. Step 2: Convert to fraction form
    28,615.92/39,492.36 = 15,873.10/x
  3. Step 3: Cross multiply
    28,615.92x = 39,492.36 × 15,873.10
  4. Step 4: Simplify right side
    28,615.92x = 626,866,080.79
  5. Step 5: Solve for x
    x = 626,866,080.79/28,615.92
  6. Step 6: Final answer
    x = 21,906.20

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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.