Home / 39,421.68-59,142.36-11,719.68

Finding the Fourth Proportional to 39,421.68, 59,142.36 and 11,719.68

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Solution

The fourth proportional to 39,421.68, 59,142.36 and 11,719.68 is: 17,582.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,421.68 : 59,142.36 = 11,719.68 : x
  2. Step 2: Convert to fraction form
    39,421.68/59,142.36 = 11,719.68/x
  3. Step 3: Cross multiply
    39,421.68x = 59,142.36 × 11,719.68
  4. Step 4: Simplify right side
    39,421.68x = 693,129,533.64
  5. Step 5: Solve for x
    x = 693,129,533.64/39,421.68
  6. Step 6: Final answer
    x = 17,582.45

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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.