Home / 28,045.46-42,055.87-10,502.99

Finding the Fourth Proportional to 28,045.46, 42,055.87 and 10,502.99

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Solution

The fourth proportional to 28,045.46, 42,055.87 and 10,502.99 is: 15,749.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.46 : 42,055.87 = 10,502.99 : x
  2. Step 2: Convert to fraction form
    28,045.46/42,055.87 = 10,502.99/x
  3. Step 3: Cross multiply
    28,045.46x = 42,055.87 × 10,502.99
  4. Step 4: Simplify right side
    28,045.46x = 441,712,382.05
  5. Step 5: Solve for x
    x = 441,712,382.05/28,045.46
  6. Step 6: Final answer
    x = 15,749.87

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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.