Home / 29,340.28-40,455.48-21,386.08

Finding the Fourth Proportional to 29,340.28, 40,455.48 and 21,386.08

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Solution

The fourth proportional to 29,340.28, 40,455.48 and 21,386.08 is: 29,487.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,340.28 : 40,455.48 = 21,386.08 : x
  2. Step 2: Convert to fraction form
    29,340.28/40,455.48 = 21,386.08/x
  3. Step 3: Cross multiply
    29,340.28x = 40,455.48 × 21,386.08
  4. Step 4: Simplify right side
    29,340.28x = 865,184,131.72
  5. Step 5: Solve for x
    x = 865,184,131.72/29,340.28
  6. Step 6: Final answer
    x = 29,487.93

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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.