Home / 28,149.72-42,225.35-9,426.27

Finding the Fourth Proportional to 28,149.72, 42,225.35 and 9,426.27

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Solution

The fourth proportional to 28,149.72, 42,225.35 and 9,426.27 is: 14,139.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,149.72 : 42,225.35 = 9,426.27 : x
  2. Step 2: Convert to fraction form
    28,149.72/42,225.35 = 9,426.27/x
  3. Step 3: Cross multiply
    28,149.72x = 42,225.35 × 9,426.27
  4. Step 4: Simplify right side
    28,149.72x = 398,027,502.81
  5. Step 5: Solve for x
    x = 398,027,502.81/28,149.72
  6. Step 6: Final answer
    x = 14,139.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.