Home / 21,657.60-32,499.36-9,345.60

Finding the Fourth Proportional to 21,657.60, 32,499.36 and 9,345.60

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Solution

The fourth proportional to 21,657.60, 32,499.36 and 9,345.60 is: 14,023.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,657.60 : 32,499.36 = 9,345.60 : x
  2. Step 2: Convert to fraction form
    21,657.60/32,499.36 = 9,345.60/x
  3. Step 3: Cross multiply
    21,657.60x = 32,499.36 × 9,345.60
  4. Step 4: Simplify right side
    21,657.60x = 303,726,018.82
  5. Step 5: Solve for x
    x = 303,726,018.82/21,657.60
  6. Step 6: Final answer
    x = 14,023.99

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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.