Home / 28,619.16-42,718.19-26,613.60

Finding the Fourth Proportional to 28,619.16, 42,718.19 and 26,613.60

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Solution

The fourth proportional to 28,619.16, 42,718.19 and 26,613.60 is: 39,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,619.16 : 42,718.19 = 26,613.60 : x
  2. Step 2: Convert to fraction form
    28,619.16/42,718.19 = 26,613.60/x
  3. Step 3: Cross multiply
    28,619.16x = 42,718.19 × 26,613.60
  4. Step 4: Simplify right side
    28,619.16x = 1,136,884,821.38
  5. Step 5: Solve for x
    x = 1,136,884,821.38/28,619.16
  6. Step 6: Final answer
    x = 39,724.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.