Home / 39,935.81-59,903.72-12,230.21

Finding the Fourth Proportional to 39,935.81, 59,903.72 and 12,230.21

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Solution

The fourth proportional to 39,935.81, 59,903.72 and 12,230.21 is: 18,345.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,935.81 : 59,903.72 = 12,230.21 : x
  2. Step 2: Convert to fraction form
    39,935.81/59,903.72 = 12,230.21/x
  3. Step 3: Cross multiply
    39,935.81x = 59,903.72 × 12,230.21
  4. Step 4: Simplify right side
    39,935.81x = 732,635,014.23
  5. Step 5: Solve for x
    x = 732,635,014.23/39,935.81
  6. Step 6: Final answer
    x = 18,345.32

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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.