Home / 43,938.08-65,887.20-18,966.40

Finding the Fourth Proportional to 43,938.08, 65,887.20 and 18,966.40

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Solution

The fourth proportional to 43,938.08, 65,887.20 and 18,966.40 is: 28,441.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,938.08 : 65,887.20 = 18,966.40 : x
  2. Step 2: Convert to fraction form
    43,938.08/65,887.20 = 18,966.40/x
  3. Step 3: Cross multiply
    43,938.08x = 65,887.20 × 18,966.40
  4. Step 4: Simplify right side
    43,938.08x = 1,249,642,990.08
  5. Step 5: Solve for x
    x = 1,249,642,990.08/43,938.08
  6. Step 6: Final answer
    x = 28,441.00

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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.