Home / 43,638.17-65,457.25-12,047.18

Finding the Fourth Proportional to 43,638.17, 65,457.25 and 12,047.18

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Solution

The fourth proportional to 43,638.17, 65,457.25 and 12,047.18 is: 18,070.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,638.17 : 65,457.25 = 12,047.18 : x
  2. Step 2: Convert to fraction form
    43,638.17/65,457.25 = 12,047.18/x
  3. Step 3: Cross multiply
    43,638.17x = 65,457.25 × 12,047.18
  4. Step 4: Simplify right side
    43,638.17x = 788,575,334.67
  5. Step 5: Solve for x
    x = 788,575,334.67/43,638.17
  6. Step 6: Final answer
    x = 18,070.77

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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.