Home / 39,395.73-54,366.02-21,490.74

Finding the Fourth Proportional to 39,395.73, 54,366.02 and 21,490.74

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Solution

The fourth proportional to 39,395.73, 54,366.02 and 21,490.74 is: 29,657.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.73 : 54,366.02 = 21,490.74 : x
  2. Step 2: Convert to fraction form
    39,395.73/54,366.02 = 21,490.74/x
  3. Step 3: Cross multiply
    39,395.73x = 54,366.02 × 21,490.74
  4. Step 4: Simplify right side
    39,395.73x = 1,168,366,000.65
  5. Step 5: Solve for x
    x = 1,168,366,000.65/39,395.73
  6. Step 6: Final answer
    x = 29,657.17

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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.