Home / 19,487.81-29,243.24-8,242.51

Finding the Fourth Proportional to 19,487.81, 29,243.24 and 8,242.51

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Solution

The fourth proportional to 19,487.81, 29,243.24 and 8,242.51 is: 12,368.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.81 : 29,243.24 = 8,242.51 : x
  2. Step 2: Convert to fraction form
    19,487.81/29,243.24 = 8,242.51/x
  3. Step 3: Cross multiply
    19,487.81x = 29,243.24 × 8,242.51
  4. Step 4: Simplify right side
    19,487.81x = 241,037,698.13
  5. Step 5: Solve for x
    x = 241,037,698.13/19,487.81
  6. Step 6: Final answer
    x = 12,368.64

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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.