Home / 47,269.20-70,917.57-13,990.08

Finding the Fourth Proportional to 47,269.20, 70,917.57 and 13,990.08

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Solution

The fourth proportional to 47,269.20, 70,917.57 and 13,990.08 is: 20,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,269.20 : 70,917.57 = 13,990.08 : x
  2. Step 2: Convert to fraction form
    47,269.20/70,917.57 = 13,990.08/x
  3. Step 3: Cross multiply
    47,269.20x = 70,917.57 × 13,990.08
  4. Step 4: Simplify right side
    47,269.20x = 992,142,477.71
  5. Step 5: Solve for x
    x = 992,142,477.71/47,269.20
  6. Step 6: Final answer
    x = 20,989.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.