Home / 28,563.28-39,417.74-16,457.09

Finding the Fourth Proportional to 28,563.28, 39,417.74 and 16,457.09

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Solution

The fourth proportional to 28,563.28, 39,417.74 and 16,457.09 is: 22,711.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,563.28 : 39,417.74 = 16,457.09 : x
  2. Step 2: Convert to fraction form
    28,563.28/39,417.74 = 16,457.09/x
  3. Step 3: Cross multiply
    28,563.28x = 39,417.74 × 16,457.09
  4. Step 4: Simplify right side
    28,563.28x = 648,701,132.55
  5. Step 5: Solve for x
    x = 648,701,132.55/28,563.28
  6. Step 6: Final answer
    x = 22,711.01

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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.