Home / 28,706.08-39,612.98-15,960.12

Finding the Fourth Proportional to 28,706.08, 39,612.98 and 15,960.12

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Solution

The fourth proportional to 28,706.08, 39,612.98 and 15,960.12 is: 22,024.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.08 : 39,612.98 = 15,960.12 : x
  2. Step 2: Convert to fraction form
    28,706.08/39,612.98 = 15,960.12/x
  3. Step 3: Cross multiply
    28,706.08x = 39,612.98 × 15,960.12
  4. Step 4: Simplify right side
    28,706.08x = 632,227,914.36
  5. Step 5: Solve for x
    x = 632,227,914.36/28,706.08
  6. Step 6: Final answer
    x = 22,024.18

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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.