Home / 19,587.29-27,038.16-13,217.63

Finding the Fourth Proportional to 19,587.29, 27,038.16 and 13,217.63

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Solution

The fourth proportional to 19,587.29, 27,038.16 and 13,217.63 is: 18,245.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.29 : 27,038.16 = 13,217.63 : x
  2. Step 2: Convert to fraction form
    19,587.29/27,038.16 = 13,217.63/x
  3. Step 3: Cross multiply
    19,587.29x = 27,038.16 × 13,217.63
  4. Step 4: Simplify right side
    19,587.29x = 357,380,259.57
  5. Step 5: Solve for x
    x = 357,380,259.57/19,587.29
  6. Step 6: Final answer
    x = 18,245.52

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1.5x scale

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.