Home / 19,823.76-27,357.16-10,870.72

Finding the Fourth Proportional to 19,823.76, 27,357.16 and 10,870.72

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Solution

The fourth proportional to 19,823.76, 27,357.16 and 10,870.72 is: 15,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,823.76 : 27,357.16 = 10,870.72 : x
  2. Step 2: Convert to fraction form
    19,823.76/27,357.16 = 10,870.72/x
  3. Step 3: Cross multiply
    19,823.76x = 27,357.16 × 10,870.72
  4. Step 4: Simplify right side
    19,823.76x = 297,392,026.36
  5. Step 5: Solve for x
    x = 297,392,026.36/19,823.76
  6. Step 6: Final answer
    x = 15,001.80

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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.