Home / 28,565.72-39,420.46-16,461.79

Finding the Fourth Proportional to 28,565.72, 39,420.46 and 16,461.79

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Solution

The fourth proportional to 28,565.72, 39,420.46 and 16,461.79 is: 22,717.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,565.72 : 39,420.46 = 16,461.79 : x
  2. Step 2: Convert to fraction form
    28,565.72/39,420.46 = 16,461.79/x
  3. Step 3: Cross multiply
    28,565.72x = 39,420.46 × 16,461.79
  4. Step 4: Simplify right side
    28,565.72x = 648,931,286.86
  5. Step 5: Solve for x
    x = 648,931,286.86/28,565.72
  6. Step 6: Final answer
    x = 22,717.13

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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.