Home / 19,873.76-27,426.30-10,921.50

Finding the Fourth Proportional to 19,873.76, 27,426.30 and 10,921.50

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Solution

The fourth proportional to 19,873.76, 27,426.30 and 10,921.50 is: 15,071.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,873.76 : 27,426.30 = 10,921.50 : x
  2. Step 2: Convert to fraction form
    19,873.76/27,426.30 = 10,921.50/x
  3. Step 3: Cross multiply
    19,873.76x = 27,426.30 × 10,921.50
  4. Step 4: Simplify right side
    19,873.76x = 299,536,294.49
  5. Step 5: Solve for x
    x = 299,536,294.49/19,873.76
  6. Step 6: Final answer
    x = 15,071.95

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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.