Home / 39,328.74-54,274.59-21,424.64

Finding the Fourth Proportional to 39,328.74, 54,274.59 and 21,424.64

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Solution

The fourth proportional to 39,328.74, 54,274.59 and 21,424.64 is: 29,566.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,328.74 : 54,274.59 = 21,424.64 : x
  2. Step 2: Convert to fraction form
    39,328.74/54,274.59 = 21,424.64/x
  3. Step 3: Cross multiply
    39,328.74x = 54,274.59 × 21,424.64
  4. Step 4: Simplify right side
    39,328.74x = 1,162,813,280.52
  5. Step 5: Solve for x
    x = 1,162,813,280.52/39,328.74
  6. Step 6: Final answer
    x = 29,566.50

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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.