Home / 27,931.66-38,545.95-15,356.50

Finding the Fourth Proportional to 27,931.66, 38,545.95 and 15,356.50

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Solution

The fourth proportional to 27,931.66, 38,545.95 and 15,356.50 is: 21,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,931.66 : 38,545.95 = 15,356.50 : x
  2. Step 2: Convert to fraction form
    27,931.66/38,545.95 = 15,356.50/x
  3. Step 3: Cross multiply
    27,931.66x = 38,545.95 × 15,356.50
  4. Step 4: Simplify right side
    27,931.66x = 591,930,881.18
  5. Step 5: Solve for x
    x = 591,930,881.18/27,931.66
  6. Step 6: Final answer
    x = 21,192.11

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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.