Home / 42,970.60-64,448.46-11,798.56

Finding the Fourth Proportional to 42,970.60, 64,448.46 and 11,798.56

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Solution

The fourth proportional to 42,970.60, 64,448.46 and 11,798.56 is: 17,695.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,970.60 : 64,448.46 = 11,798.56 : x
  2. Step 2: Convert to fraction form
    42,970.60/64,448.46 = 11,798.56/x
  3. Step 3: Cross multiply
    42,970.60x = 64,448.46 × 11,798.56
  4. Step 4: Simplify right side
    42,970.60x = 760,399,022.22
  5. Step 5: Solve for x
    x = 760,399,022.22/42,970.60
  6. Step 6: Final answer
    x = 17,695.80

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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.