Home / 27,842.16-38,424.12-15,267.72

Finding the Fourth Proportional to 27,842.16, 38,424.12 and 15,267.72

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Solution

The fourth proportional to 27,842.16, 38,424.12 and 15,267.72 is: 21,070.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,842.16 : 38,424.12 = 15,267.72 : x
  2. Step 2: Convert to fraction form
    27,842.16/38,424.12 = 15,267.72/x
  3. Step 3: Cross multiply
    27,842.16x = 38,424.12 × 15,267.72
  4. Step 4: Simplify right side
    27,842.16x = 586,648,705.41
  5. Step 5: Solve for x
    x = 586,648,705.41/27,842.16
  6. Step 6: Final answer
    x = 21,070.52

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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.