Home / 28,360.96-39,140.39-16,424.51

Finding the Fourth Proportional to 28,360.96, 39,140.39 and 16,424.51

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Solution

The fourth proportional to 28,360.96, 39,140.39 and 16,424.51 is: 22,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.96 : 39,140.39 = 16,424.51 : x
  2. Step 2: Convert to fraction form
    28,360.96/39,140.39 = 16,424.51/x
  3. Step 3: Cross multiply
    28,360.96x = 39,140.39 × 16,424.51
  4. Step 4: Simplify right side
    28,360.96x = 642,861,572.32
  5. Step 5: Solve for x
    x = 642,861,572.32/28,360.96
  6. Step 6: Final answer
    x = 22,667.13

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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.