Home / 25,210.85-34,768.08-20,708.06

Finding the Fourth Proportional to 25,210.85, 34,768.08 and 20,708.06

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Solution

The fourth proportional to 25,210.85, 34,768.08 and 20,708.06 is: 28,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,210.85 : 34,768.08 = 20,708.06 : x
  2. Step 2: Convert to fraction form
    25,210.85/34,768.08 = 20,708.06/x
  3. Step 3: Cross multiply
    25,210.85x = 34,768.08 × 20,708.06
  4. Step 4: Simplify right side
    25,210.85x = 719,979,312.88
  5. Step 5: Solve for x
    x = 719,979,312.88/25,210.85
  6. Step 6: Final answer
    x = 28,558.32

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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.