Home / 28,240.14-42,332.67-13,445.09

Finding the Fourth Proportional to 28,240.14, 42,332.67 and 13,445.09

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Solution

The fourth proportional to 28,240.14, 42,332.67 and 13,445.09 is: 20,154.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.14 : 42,332.67 = 13,445.09 : x
  2. Step 2: Convert to fraction form
    28,240.14/42,332.67 = 13,445.09/x
  3. Step 3: Cross multiply
    28,240.14x = 42,332.67 × 13,445.09
  4. Step 4: Simplify right side
    28,240.14x = 569,166,346.43
  5. Step 5: Solve for x
    x = 569,166,346.43/28,240.14
  6. Step 6: Final answer
    x = 20,154.52

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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.