Home / 39,210.08-54,110.13-21,305.23

Finding the Fourth Proportional to 39,210.08, 54,110.13 and 21,305.23

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Solution

The fourth proportional to 39,210.08, 54,110.13 and 21,305.23 is: 29,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210.08 : 54,110.13 = 21,305.23 : x
  2. Step 2: Convert to fraction form
    39,210.08/54,110.13 = 21,305.23/x
  3. Step 3: Cross multiply
    39,210.08x = 54,110.13 × 21,305.23
  4. Step 4: Simplify right side
    39,210.08x = 1,152,828,900.26
  5. Step 5: Solve for x
    x = 1,152,828,900.26/39,210.08
  6. Step 6: Final answer
    x = 29,401.34

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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.