Home / 21,457.15-32,172.69-9,608.67

Finding the Fourth Proportional to 21,457.15, 32,172.69 and 9,608.67

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Solution

The fourth proportional to 21,457.15, 32,172.69 and 9,608.67 is: 14,407.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.15 : 32,172.69 = 9,608.67 : x
  2. Step 2: Convert to fraction form
    21,457.15/32,172.69 = 9,608.67/x
  3. Step 3: Cross multiply
    21,457.15x = 32,172.69 × 9,608.67
  4. Step 4: Simplify right side
    21,457.15x = 309,136,761.22
  5. Step 5: Solve for x
    x = 309,136,761.22/21,457.15
  6. Step 6: Final answer
    x = 14,407.17

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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.