Home / 28,313.30-42,465-10,784.18

Finding the Fourth Proportional to 28,313.30, 42,465 and 10,784.18

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Solution

The fourth proportional to 28,313.30, 42,465 and 10,784.18 is: 16,174.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.30 : 42,465 = 10,784.18 : x
  2. Step 2: Convert to fraction form
    28,313.30/42,465 = 10,784.18/x
  3. Step 3: Cross multiply
    28,313.30x = 42,465 × 10,784.18
  4. Step 4: Simplify right side
    28,313.30x = 457,950,203.70
  5. Step 5: Solve for x
    x = 457,950,203.70/28,313.30
  6. Step 6: Final answer
    x = 16,174.38

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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.