Home / 28,264.19-39,005.04-15,688.94

Finding the Fourth Proportional to 28,264.19, 39,005.04 and 15,688.94

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Solution

The fourth proportional to 28,264.19, 39,005.04 and 15,688.94 is: 21,650.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,264.19 : 39,005.04 = 15,688.94 : x
  2. Step 2: Convert to fraction form
    28,264.19/39,005.04 = 15,688.94/x
  3. Step 3: Cross multiply
    28,264.19x = 39,005.04 × 15,688.94
  4. Step 4: Simplify right side
    28,264.19x = 611,947,556.30
  5. Step 5: Solve for x
    x = 611,947,556.30/28,264.19
  6. Step 6: Final answer
    x = 21,650.99

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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.