Home / 34,291.08-47,318.58-21,715.56

Finding the Fourth Proportional to 34,291.08, 47,318.58 and 21,715.56

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Solution

The fourth proportional to 34,291.08, 47,318.58 and 21,715.56 is: 29,965.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,291.08 : 47,318.58 = 21,715.56 : x
  2. Step 2: Convert to fraction form
    34,291.08/47,318.58 = 21,715.56/x
  3. Step 3: Cross multiply
    34,291.08x = 47,318.58 × 21,715.56
  4. Step 4: Simplify right side
    34,291.08x = 1,027,549,463.10
  5. Step 5: Solve for x
    x = 1,027,549,463.10/34,291.08
  6. Step 6: Final answer
    x = 29,965.50

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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.