Home / 39,362.19-54,320.52-21,457.95

Finding the Fourth Proportional to 39,362.19, 54,320.52 and 21,457.95

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Solution

The fourth proportional to 39,362.19, 54,320.52 and 21,457.95 is: 29,612.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,362.19 : 54,320.52 = 21,457.95 : x
  2. Step 2: Convert to fraction form
    39,362.19/54,320.52 = 21,457.95/x
  3. Step 3: Cross multiply
    39,362.19x = 54,320.52 × 21,457.95
  4. Step 4: Simplify right side
    39,362.19x = 1,165,606,878.90
  5. Step 5: Solve for x
    x = 1,165,606,878.90/39,362.19
  6. Step 6: Final answer
    x = 29,612.35

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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.