Home / 34,301.40-47,332.69-21,379.47

Finding the Fourth Proportional to 34,301.40, 47,332.69 and 21,379.47

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Solution

The fourth proportional to 34,301.40, 47,332.69 and 21,379.47 is: 29,501.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,301.40 : 47,332.69 = 21,379.47 : x
  2. Step 2: Convert to fraction form
    34,301.40/47,332.69 = 21,379.47/x
  3. Step 3: Cross multiply
    34,301.40x = 47,332.69 × 21,379.47
  4. Step 4: Simplify right side
    34,301.40x = 1,011,947,825.87
  5. Step 5: Solve for x
    x = 1,011,947,825.87/34,301.40
  6. Step 6: Final answer
    x = 29,501.65

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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.