Home / 29,565.12-40,784.64-20,005.40

Finding the Fourth Proportional to 29,565.12, 40,784.64 and 20,005.40

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Solution

The fourth proportional to 29,565.12, 40,784.64 and 20,005.40 is: 27,597.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,565.12 : 40,784.64 = 20,005.40 : x
  2. Step 2: Convert to fraction form
    29,565.12/40,784.64 = 20,005.40/x
  3. Step 3: Cross multiply
    29,565.12x = 40,784.64 × 20,005.40
  4. Step 4: Simplify right side
    29,565.12x = 815,913,037.06
  5. Step 5: Solve for x
    x = 815,913,037.06/29,565.12
  6. Step 6: Final answer
    x = 27,597.15

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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.