Home / 28,466.13-39,283.89-15,719.27

Finding the Fourth Proportional to 28,466.13, 39,283.89 and 15,719.27

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Solution

The fourth proportional to 28,466.13, 39,283.89 and 15,719.27 is: 21,692.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.13 : 39,283.89 = 15,719.27 : x
  2. Step 2: Convert to fraction form
    28,466.13/39,283.89 = 15,719.27/x
  3. Step 3: Cross multiply
    28,466.13x = 39,283.89 × 15,719.27
  4. Step 4: Simplify right side
    28,466.13x = 617,513,818.19
  5. Step 5: Solve for x
    x = 617,513,818.19/28,466.13
  6. Step 6: Final answer
    x = 21,692.93

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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.