Home / 25,697.17-35,483.88-21,470.79

Finding the Fourth Proportional to 25,697.17, 35,483.88 and 21,470.79

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Solution

The fourth proportional to 25,697.17, 35,483.88 and 21,470.79 is: 29,647.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,697.17 : 35,483.88 = 21,470.79 : x
  2. Step 2: Convert to fraction form
    25,697.17/35,483.88 = 21,470.79/x
  3. Step 3: Cross multiply
    25,697.17x = 35,483.88 × 21,470.79
  4. Step 4: Simplify right side
    25,697.17x = 761,866,935.87
  5. Step 5: Solve for x
    x = 761,866,935.87/25,697.17
  6. Step 6: Final answer
    x = 29,647.89

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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.