Home / 28,319.70-39,082.04-15,572.23

Finding the Fourth Proportional to 28,319.70, 39,082.04 and 15,572.23

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Solution

The fourth proportional to 28,319.70, 39,082.04 and 15,572.23 is: 21,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.70 : 39,082.04 = 15,572.23 : x
  2. Step 2: Convert to fraction form
    28,319.70/39,082.04 = 15,572.23/x
  3. Step 3: Cross multiply
    28,319.70x = 39,082.04 × 15,572.23
  4. Step 4: Simplify right side
    28,319.70x = 608,594,515.75
  5. Step 5: Solve for x
    x = 608,594,515.75/28,319.70
  6. Step 6: Final answer
    x = 21,490.15

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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.