Home / 21,712.60-32,579.70-8,565.40

Finding the Fourth Proportional to 21,712.60, 32,579.70 and 8,565.40

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Solution

The fourth proportional to 21,712.60, 32,579.70 and 8,565.40 is: 12,852.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,712.60 : 32,579.70 = 8,565.40 : x
  2. Step 2: Convert to fraction form
    21,712.60/32,579.70 = 8,565.40/x
  3. Step 3: Cross multiply
    21,712.60x = 32,579.70 × 8,565.40
  4. Step 4: Simplify right side
    21,712.60x = 279,058,162.38
  5. Step 5: Solve for x
    x = 279,058,162.38/21,712.60
  6. Step 6: Final answer
    x = 12,852.36

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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.