Home / 28,085.19-42,139.25-18,095.16

Finding the Fourth Proportional to 28,085.19, 42,139.25 and 18,095.16

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Solution

The fourth proportional to 28,085.19, 42,139.25 and 18,095.16 is: 27,150.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.19 : 42,139.25 = 18,095.16 : x
  2. Step 2: Convert to fraction form
    28,085.19/42,139.25 = 18,095.16/x
  3. Step 3: Cross multiply
    28,085.19x = 42,139.25 × 18,095.16
  4. Step 4: Simplify right side
    28,085.19x = 762,516,471.03
  5. Step 5: Solve for x
    x = 762,516,471.03/28,085.19
  6. Step 6: Final answer
    x = 27,150.13

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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.