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Finding the Fourth Proportional to 29,379.51, 40,543.08 and 15,950.64

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Solution

The fourth proportional to 29,379.51, 40,543.08 and 15,950.64 is: 22,011.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,379.51 : 40,543.08 = 15,950.64 : x
  2. Step 2: Convert to fraction form
    29,379.51/40,543.08 = 15,950.64/x
  3. Step 3: Cross multiply
    29,379.51x = 40,543.08 × 15,950.64
  4. Step 4: Simplify right side
    29,379.51x = 646,688,073.57
  5. Step 5: Solve for x
    x = 646,688,073.57/29,379.51
  6. Step 6: Final answer
    x = 22,011.53

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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.