Home / 28,417.11-42,571.11-15,899.19

Finding the Fourth Proportional to 28,417.11, 42,571.11 and 15,899.19

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Solution

The fourth proportional to 28,417.11, 42,571.11 and 15,899.19 is: 23,818.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,417.11 : 42,571.11 = 15,899.19 : x
  2. Step 2: Convert to fraction form
    28,417.11/42,571.11 = 15,899.19/x
  3. Step 3: Cross multiply
    28,417.11x = 42,571.11 × 15,899.19
  4. Step 4: Simplify right side
    28,417.11x = 676,846,166.40
  5. Step 5: Solve for x
    x = 676,846,166.40/28,417.11
  6. Step 6: Final answer
    x = 23,818.26

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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.