Home / 39,395.08-54,364.02-21,490.36

Finding the Fourth Proportional to 39,395.08, 54,364.02 and 21,490.36

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Solution

The fourth proportional to 39,395.08, 54,364.02 and 21,490.36 is: 29,656.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,395.08 : 54,364.02 = 21,490.36 : x
  2. Step 2: Convert to fraction form
    39,395.08/54,364.02 = 21,490.36/x
  3. Step 3: Cross multiply
    39,395.08x = 54,364.02 × 21,490.36
  4. Step 4: Simplify right side
    39,395.08x = 1,168,302,360.85
  5. Step 5: Solve for x
    x = 1,168,302,360.85/39,395.08
  6. Step 6: Final answer
    x = 29,656.05

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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.