Home / 28,032.66-38,685.36-15,457.86

Finding the Fourth Proportional to 28,032.66, 38,685.36 and 15,457.86

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Solution

The fourth proportional to 28,032.66, 38,685.36 and 15,457.86 is: 21,332.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.66 : 38,685.36 = 15,457.86 : x
  2. Step 2: Convert to fraction form
    28,032.66/38,685.36 = 15,457.86/x
  3. Step 3: Cross multiply
    28,032.66x = 38,685.36 × 15,457.86
  4. Step 4: Simplify right side
    28,032.66x = 597,992,878.93
  5. Step 5: Solve for x
    x = 597,992,878.93/28,032.66
  6. Step 6: Final answer
    x = 21,332.01

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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.