Home / 43,272.87-64,911.67-13,688.51

Finding the Fourth Proportional to 43,272.87, 64,911.67 and 13,688.51

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Solution

The fourth proportional to 43,272.87, 64,911.67 and 13,688.51 is: 20,533.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,272.87 : 64,911.67 = 13,688.51 : x
  2. Step 2: Convert to fraction form
    43,272.87/64,911.67 = 13,688.51/x
  3. Step 3: Cross multiply
    43,272.87x = 64,911.67 × 13,688.51
  4. Step 4: Simplify right side
    43,272.87x = 888,543,685.13
  5. Step 5: Solve for x
    x = 888,543,685.13/43,272.87
  6. Step 6: Final answer
    x = 20,533.50

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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.