Home / 23,709.79-32,720.16-13,100.10

Finding the Fourth Proportional to 23,709.79, 32,720.16 and 13,100.10

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Solution

The fourth proportional to 23,709.79, 32,720.16 and 13,100.10 is: 18,078.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,709.79 : 32,720.16 = 13,100.10 : x
  2. Step 2: Convert to fraction form
    23,709.79/32,720.16 = 13,100.10/x
  3. Step 3: Cross multiply
    23,709.79x = 32,720.16 × 13,100.10
  4. Step 4: Simplify right side
    23,709.79x = 428,637,368.02
  5. Step 5: Solve for x
    x = 428,637,368.02/23,709.79
  6. Step 6: Final answer
    x = 18,078.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.