Home / 28,337.40-42,479.10-10,563.30

Finding the Fourth Proportional to 28,337.40, 42,479.10 and 10,563.30

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Solution

The fourth proportional to 28,337.40, 42,479.10 and 10,563.30 is: 15,834.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.40 : 42,479.10 = 10,563.30 : x
  2. Step 2: Convert to fraction form
    28,337.40/42,479.10 = 10,563.30/x
  3. Step 3: Cross multiply
    28,337.40x = 42,479.10 × 10,563.30
  4. Step 4: Simplify right side
    28,337.40x = 448,719,477.03
  5. Step 5: Solve for x
    x = 448,719,477.03/28,337.40
  6. Step 6: Final answer
    x = 15,834.89

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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.