Home / 19,581.57-29,382.08-12,565.35

Finding the Fourth Proportional to 19,581.57, 29,382.08 and 12,565.35

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Solution

The fourth proportional to 19,581.57, 29,382.08 and 12,565.35 is: 18,854.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,581.57 : 29,382.08 = 12,565.35 : x
  2. Step 2: Convert to fraction form
    19,581.57/29,382.08 = 12,565.35/x
  3. Step 3: Cross multiply
    19,581.57x = 29,382.08 × 12,565.35
  4. Step 4: Simplify right side
    19,581.57x = 369,196,056.10
  5. Step 5: Solve for x
    x = 369,196,056.10/19,581.57
  6. Step 6: Final answer
    x = 18,854.26

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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.