Home / 27,807.38-38,374.81-15,870.48

Finding the Fourth Proportional to 27,807.38, 38,374.81 and 15,870.48

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Solution

The fourth proportional to 27,807.38, 38,374.81 and 15,870.48 is: 21,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.38 : 38,374.81 = 15,870.48 : x
  2. Step 2: Convert to fraction form
    27,807.38/38,374.81 = 15,870.48/x
  3. Step 3: Cross multiply
    27,807.38x = 38,374.81 × 15,870.48
  4. Step 4: Simplify right side
    27,807.38x = 609,026,614.93
  5. Step 5: Solve for x
    x = 609,026,614.93/27,807.38
  6. Step 6: Final answer
    x = 21,901.62

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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.