Home / 29,218.08-40,318.80-16,642.40

Finding the Fourth Proportional to 29,218.08, 40,318.80 and 16,642.40

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Solution

The fourth proportional to 29,218.08, 40,318.80 and 16,642.40 is: 22,965.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,218.08 : 40,318.80 = 16,642.40 : x
  2. Step 2: Convert to fraction form
    29,218.08/40,318.80 = 16,642.40/x
  3. Step 3: Cross multiply
    29,218.08x = 40,318.80 × 16,642.40
  4. Step 4: Simplify right side
    29,218.08x = 671,001,597.12
  5. Step 5: Solve for x
    x = 671,001,597.12/29,218.08
  6. Step 6: Final answer
    x = 22,965.29

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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.