Home / 34,690.40-47,878.96-20,550.24

Finding the Fourth Proportional to 34,690.40, 47,878.96 and 20,550.24

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Solution

The fourth proportional to 34,690.40, 47,878.96 and 20,550.24 is: 28,363.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,690.40 : 47,878.96 = 20,550.24 : x
  2. Step 2: Convert to fraction form
    34,690.40/47,878.96 = 20,550.24/x
  3. Step 3: Cross multiply
    34,690.40x = 47,878.96 × 20,550.24
  4. Step 4: Simplify right side
    34,690.40x = 983,924,118.95
  5. Step 5: Solve for x
    x = 983,924,118.95/34,690.40
  6. Step 6: Final answer
    x = 28,363.01

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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.