Home / 42,707.19-64,054.20-14,620.80

Finding the Fourth Proportional to 42,707.19, 64,054.20 and 14,620.80

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Solution

The fourth proportional to 42,707.19, 64,054.20 and 14,620.80 is: 21,928.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,707.19 : 64,054.20 = 14,620.80 : x
  2. Step 2: Convert to fraction form
    42,707.19/64,054.20 = 14,620.80/x
  3. Step 3: Cross multiply
    42,707.19x = 64,054.20 × 14,620.80
  4. Step 4: Simplify right side
    42,707.19x = 936,523,647.36
  5. Step 5: Solve for x
    x = 936,523,647.36/42,707.19
  6. Step 6: Final answer
    x = 21,928.95

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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.