Home / 27,970.74-38,600.55-15,395.76

Finding the Fourth Proportional to 27,970.74, 38,600.55 and 15,395.76

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Solution

The fourth proportional to 27,970.74, 38,600.55 and 15,395.76 is: 21,246.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.74 : 38,600.55 = 15,395.76 : x
  2. Step 2: Convert to fraction form
    27,970.74/38,600.55 = 15,395.76/x
  3. Step 3: Cross multiply
    27,970.74x = 38,600.55 × 15,395.76
  4. Step 4: Simplify right side
    27,970.74x = 594,284,803.67
  5. Step 5: Solve for x
    x = 594,284,803.67/27,970.74
  6. Step 6: Final answer
    x = 21,246.66

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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.