Home / 42,769.68-64,167.48-19,389.84

Finding the Fourth Proportional to 42,769.68, 64,167.48 and 19,389.84

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Solution

The fourth proportional to 42,769.68, 64,167.48 and 19,389.84 is: 29,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,769.68 : 64,167.48 = 19,389.84 : x
  2. Step 2: Convert to fraction form
    42,769.68/64,167.48 = 19,389.84/x
  3. Step 3: Cross multiply
    42,769.68x = 64,167.48 × 19,389.84
  4. Step 4: Simplify right side
    42,769.68x = 1,244,197,170.40
  5. Step 5: Solve for x
    x = 1,244,197,170.40/42,769.68
  6. Step 6: Final answer
    x = 29,090.64

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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.