Home / 51,430.14-70,979.47-28,774.87

Finding the Fourth Proportional to 51,430.14, 70,979.47 and 28,774.87

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Solution

The fourth proportional to 51,430.14, 70,979.47 and 28,774.87 is: 39,712.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,430.14 : 70,979.47 = 28,774.87 : x
  2. Step 2: Convert to fraction form
    51,430.14/70,979.47 = 28,774.87/x
  3. Step 3: Cross multiply
    51,430.14x = 70,979.47 × 28,774.87
  4. Step 4: Simplify right side
    51,430.14x = 2,042,424,667.02
  5. Step 5: Solve for x
    x = 2,042,424,667.02/51,430.14
  6. Step 6: Final answer
    x = 39,712.61

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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.