Home / 28,077.18-38,743.02-15,501.84

Finding the Fourth Proportional to 28,077.18, 38,743.02 and 15,501.84

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Solution

The fourth proportional to 28,077.18, 38,743.02 and 15,501.84 is: 21,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.18 : 38,743.02 = 15,501.84 : x
  2. Step 2: Convert to fraction form
    28,077.18/38,743.02 = 15,501.84/x
  3. Step 3: Cross multiply
    28,077.18x = 38,743.02 × 15,501.84
  4. Step 4: Simplify right side
    28,077.18x = 600,588,097.16
  5. Step 5: Solve for x
    x = 600,588,097.16/28,077.18
  6. Step 6: Final answer
    x = 21,390.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.