Home / 29,455.12-40,647.72-19,398.16

Finding the Fourth Proportional to 29,455.12, 40,647.72 and 19,398.16

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Solution

The fourth proportional to 29,455.12, 40,647.72 and 19,398.16 is: 26,769.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.12 : 40,647.72 = 19,398.16 : x
  2. Step 2: Convert to fraction form
    29,455.12/40,647.72 = 19,398.16/x
  3. Step 3: Cross multiply
    29,455.12x = 40,647.72 × 19,398.16
  4. Step 4: Simplify right side
    29,455.12x = 788,490,976.20
  5. Step 5: Solve for x
    x = 788,490,976.20/29,455.12
  6. Step 6: Final answer
    x = 26,769.23

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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.