Home / 28,299.24-42,434.28-12,703.50

Finding the Fourth Proportional to 28,299.24, 42,434.28 and 12,703.50

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Solution

The fourth proportional to 28,299.24, 42,434.28 and 12,703.50 is: 19,048.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,299.24 : 42,434.28 = 12,703.50 : x
  2. Step 2: Convert to fraction form
    28,299.24/42,434.28 = 12,703.50/x
  3. Step 3: Cross multiply
    28,299.24x = 42,434.28 × 12,703.50
  4. Step 4: Simplify right side
    28,299.24x = 539,063,875.98
  5. Step 5: Solve for x
    x = 539,063,875.98/28,299.24
  6. Step 6: Final answer
    x = 19,048.71

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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.