Home / 39,389.04-54,357.32-21,483.92

Finding the Fourth Proportional to 39,389.04, 54,357.32 and 21,483.92

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Solution

The fourth proportional to 39,389.04, 54,357.32 and 21,483.92 is: 29,648.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.04 : 54,357.32 = 21,483.92 : x
  2. Step 2: Convert to fraction form
    39,389.04/54,357.32 = 21,483.92/x
  3. Step 3: Cross multiply
    39,389.04x = 54,357.32 × 21,483.92
  4. Step 4: Simplify right side
    39,389.04x = 1,167,808,314.29
  5. Step 5: Solve for x
    x = 1,167,808,314.29/39,389.04
  6. Step 6: Final answer
    x = 29,648.05

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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.