Home / 34,788.16-47,991.72-20,635.84

Finding the Fourth Proportional to 34,788.16, 47,991.72 and 20,635.84

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Solution

The fourth proportional to 34,788.16, 47,991.72 and 20,635.84 is: 28,468.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,788.16 : 47,991.72 = 20,635.84 : x
  2. Step 2: Convert to fraction form
    34,788.16/47,991.72 = 20,635.84/x
  3. Step 3: Cross multiply
    34,788.16x = 47,991.72 × 20,635.84
  4. Step 4: Simplify right side
    34,788.16x = 990,349,455.24
  5. Step 5: Solve for x
    x = 990,349,455.24/34,788.16
  6. Step 6: Final answer
    x = 28,468.00

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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.