Home / 29,235.61-40,345.14-15,806.86

Finding the Fourth Proportional to 29,235.61, 40,345.14 and 15,806.86

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Solution

The fourth proportional to 29,235.61, 40,345.14 and 15,806.86 is: 21,813.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.61 : 40,345.14 = 15,806.86 : x
  2. Step 2: Convert to fraction form
    29,235.61/40,345.14 = 15,806.86/x
  3. Step 3: Cross multiply
    29,235.61x = 40,345.14 × 15,806.86
  4. Step 4: Simplify right side
    29,235.61x = 637,729,979.66
  5. Step 5: Solve for x
    x = 637,729,979.66/29,235.61
  6. Step 6: Final answer
    x = 21,813.47

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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.