Home / 29,688.72-40,969.20-16,259.64

Finding the Fourth Proportional to 29,688.72, 40,969.20 and 16,259.64

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Solution

The fourth proportional to 29,688.72, 40,969.20 and 16,259.64 is: 22,437.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.72 : 40,969.20 = 16,259.64 : x
  2. Step 2: Convert to fraction form
    29,688.72/40,969.20 = 16,259.64/x
  3. Step 3: Cross multiply
    29,688.72x = 40,969.20 × 16,259.64
  4. Step 4: Simplify right side
    29,688.72x = 666,144,443.09
  5. Step 5: Solve for x
    x = 666,144,443.09/29,688.72
  6. Step 6: Final answer
    x = 22,437.63

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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.