Home / 28,312.04-39,071.22-15,736.52

Finding the Fourth Proportional to 28,312.04, 39,071.22 and 15,736.52

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Solution

The fourth proportional to 28,312.04, 39,071.22 and 15,736.52 is: 21,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.04 : 39,071.22 = 15,736.52 : x
  2. Step 2: Convert to fraction form
    28,312.04/39,071.22 = 15,736.52/x
  3. Step 3: Cross multiply
    28,312.04x = 39,071.22 × 15,736.52
  4. Step 4: Simplify right side
    28,312.04x = 614,845,034.95
  5. Step 5: Solve for x
    x = 614,845,034.95/28,312.04
  6. Step 6: Final answer
    x = 21,716.73

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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.