Home / 28,176.36-42,285.96-10,423.81

Finding the Fourth Proportional to 28,176.36, 42,285.96 and 10,423.81

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Solution

The fourth proportional to 28,176.36, 42,285.96 and 10,423.81 is: 15,643.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.36 : 42,285.96 = 10,423.81 : x
  2. Step 2: Convert to fraction form
    28,176.36/42,285.96 = 10,423.81/x
  3. Step 3: Cross multiply
    28,176.36x = 42,285.96 × 10,423.81
  4. Step 4: Simplify right side
    28,176.36x = 440,780,812.71
  5. Step 5: Solve for x
    x = 440,780,812.71/28,176.36
  6. Step 6: Final answer
    x = 15,643.64

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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.