Home / 28,060.15-38,723.22-15,313.43

Finding the Fourth Proportional to 28,060.15, 38,723.22 and 15,313.43

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Solution

The fourth proportional to 28,060.15, 38,723.22 and 15,313.43 is: 21,132.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.15 : 38,723.22 = 15,313.43 : x
  2. Step 2: Convert to fraction form
    28,060.15/38,723.22 = 15,313.43/x
  3. Step 3: Cross multiply
    28,060.15x = 38,723.22 × 15,313.43
  4. Step 4: Simplify right side
    28,060.15x = 592,985,125.23
  5. Step 5: Solve for x
    x = 592,985,125.23/28,060.15
  6. Step 6: Final answer
    x = 21,132.65

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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.