Home / 39,972.51-59,927.13-15,009.78

Finding the Fourth Proportional to 39,972.51, 59,927.13 and 15,009.78

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Solution

The fourth proportional to 39,972.51, 59,927.13 and 15,009.78 is: 22,502.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,972.51 : 59,927.13 = 15,009.78 : x
  2. Step 2: Convert to fraction form
    39,972.51/59,927.13 = 15,009.78/x
  3. Step 3: Cross multiply
    39,972.51x = 59,927.13 × 15,009.78
  4. Step 4: Simplify right side
    39,972.51x = 899,492,737.70
  5. Step 5: Solve for x
    x = 899,492,737.70/39,972.51
  6. Step 6: Final answer
    x = 22,502.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.