Home / 19,685.32-27,167.87-12,130.04

Finding the Fourth Proportional to 19,685.32, 27,167.87 and 12,130.04

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Solution

The fourth proportional to 19,685.32, 27,167.87 and 12,130.04 is: 16,740.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,685.32 : 27,167.87 = 12,130.04 : x
  2. Step 2: Convert to fraction form
    19,685.32/27,167.87 = 12,130.04/x
  3. Step 3: Cross multiply
    19,685.32x = 27,167.87 × 12,130.04
  4. Step 4: Simplify right side
    19,685.32x = 329,547,349.81
  5. Step 5: Solve for x
    x = 329,547,349.81/19,685.32
  6. Step 6: Final answer
    x = 16,740.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.