Home / 21,587.18-29,790.81-12,027.71

Finding the Fourth Proportional to 21,587.18, 29,790.81 and 12,027.71

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Solution

The fourth proportional to 21,587.18, 29,790.81 and 12,027.71 is: 16,598.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.18 : 29,790.81 = 12,027.71 : x
  2. Step 2: Convert to fraction form
    21,587.18/29,790.81 = 12,027.71/x
  3. Step 3: Cross multiply
    21,587.18x = 29,790.81 × 12,027.71
  4. Step 4: Simplify right side
    21,587.18x = 358,315,074.39
  5. Step 5: Solve for x
    x = 358,315,074.39/21,587.18
  6. Step 6: Final answer
    x = 16,598.52

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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.