Home / 29,271.79-40,394.75-15,842.76

Finding the Fourth Proportional to 29,271.79, 40,394.75 and 15,842.76

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Solution

The fourth proportional to 29,271.79, 40,394.75 and 15,842.76 is: 21,862.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.79 : 40,394.75 = 15,842.76 : x
  2. Step 2: Convert to fraction form
    29,271.79/40,394.75 = 15,842.76/x
  3. Step 3: Cross multiply
    29,271.79x = 40,394.75 × 15,842.76
  4. Step 4: Simplify right side
    29,271.79x = 639,964,329.51
  5. Step 5: Solve for x
    x = 639,964,329.51/29,271.79
  6. Step 6: Final answer
    x = 21,862.84

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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.