Home / 28,077.79-38,746.32-15,502.27

Finding the Fourth Proportional to 28,077.79, 38,746.32 and 15,502.27

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Solution

The fourth proportional to 28,077.79, 38,746.32 and 15,502.27 is: 21,392.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.79 : 38,746.32 = 15,502.27 : x
  2. Step 2: Convert to fraction form
    28,077.79/38,746.32 = 15,502.27/x
  3. Step 3: Cross multiply
    28,077.79x = 38,746.32 × 15,502.27
  4. Step 4: Simplify right side
    28,077.79x = 600,655,914.15
  5. Step 5: Solve for x
    x = 600,655,914.15/28,077.79
  6. Step 6: Final answer
    x = 21,392.56

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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.