Home / 21,632.13-29,845.35-12,070.47

Finding the Fourth Proportional to 21,632.13, 29,845.35 and 12,070.47

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Solution

The fourth proportional to 21,632.13, 29,845.35 and 12,070.47 is: 16,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,632.13 : 29,845.35 = 12,070.47 : x
  2. Step 2: Convert to fraction form
    21,632.13/29,845.35 = 12,070.47/x
  3. Step 3: Cross multiply
    21,632.13x = 29,845.35 × 12,070.47
  4. Step 4: Simplify right side
    21,632.13x = 360,247,401.81
  5. Step 5: Solve for x
    x = 360,247,401.81/21,632.13
  6. Step 6: Final answer
    x = 16,653.35

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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.