Home / 39,210.02-54,110.16-21,305.02

Finding the Fourth Proportional to 39,210.02, 54,110.16 and 21,305.02

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Solution

The fourth proportional to 39,210.02, 54,110.16 and 21,305.02 is: 29,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,210.02 : 54,110.16 = 21,305.02 : x
  2. Step 2: Convert to fraction form
    39,210.02/54,110.16 = 21,305.02/x
  3. Step 3: Cross multiply
    39,210.02x = 54,110.16 × 21,305.02
  4. Step 4: Simplify right side
    39,210.02x = 1,152,817,934.48
  5. Step 5: Solve for x
    x = 1,152,817,934.48/39,210.02
  6. Step 6: Final answer
    x = 29,401.11

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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.