Home / 28,492.16-39,318.96-15,746.20

Finding the Fourth Proportional to 28,492.16, 39,318.96 and 15,746.20

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Solution

The fourth proportional to 28,492.16, 39,318.96 and 15,746.20 is: 21,729.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.16 : 39,318.96 = 15,746.20 : x
  2. Step 2: Convert to fraction form
    28,492.16/39,318.96 = 15,746.20/x
  3. Step 3: Cross multiply
    28,492.16x = 39,318.96 × 15,746.20
  4. Step 4: Simplify right side
    28,492.16x = 619,124,207.95
  5. Step 5: Solve for x
    x = 619,124,207.95/28,492.16
  6. Step 6: Final answer
    x = 21,729.63

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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.