Home / 51,631.47-71,247.06-28,967.40

Finding the Fourth Proportional to 51,631.47, 71,247.06 and 28,967.40

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Solution

The fourth proportional to 51,631.47, 71,247.06 and 28,967.40 is: 39,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,631.47 : 71,247.06 = 28,967.40 : x
  2. Step 2: Convert to fraction form
    51,631.47/71,247.06 = 28,967.40/x
  3. Step 3: Cross multiply
    51,631.47x = 71,247.06 × 28,967.40
  4. Step 4: Simplify right side
    51,631.47x = 2,063,842,085.84
  5. Step 5: Solve for x
    x = 2,063,842,085.84/51,631.47
  6. Step 6: Final answer
    x = 39,972.56

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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.