Home / 28,319.80-39,082.33-15,573.95

Finding the Fourth Proportional to 28,319.80, 39,082.33 and 15,573.95

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Solution

The fourth proportional to 28,319.80, 39,082.33 and 15,573.95 is: 21,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.80 : 39,082.33 = 15,573.95 : x
  2. Step 2: Convert to fraction form
    28,319.80/39,082.33 = 15,573.95/x
  3. Step 3: Cross multiply
    28,319.80x = 39,082.33 × 15,573.95
  4. Step 4: Simplify right side
    28,319.80x = 608,666,253.30
  5. Step 5: Solve for x
    x = 608,666,253.30/28,319.80
  6. Step 6: Final answer
    x = 21,492.60

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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.