Home / 35,531.88-53,305.98-12,158.28

Finding the Fourth Proportional to 35,531.88, 53,305.98 and 12,158.28

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Solution

The fourth proportional to 35,531.88, 53,305.98 and 12,158.28 is: 18,240.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,531.88 : 53,305.98 = 12,158.28 : x
  2. Step 2: Convert to fraction form
    35,531.88/53,305.98 = 12,158.28/x
  3. Step 3: Cross multiply
    35,531.88x = 53,305.98 × 12,158.28
  4. Step 4: Simplify right side
    35,531.88x = 648,109,030.51
  5. Step 5: Solve for x
    x = 648,109,030.51/35,531.88
  6. Step 6: Final answer
    x = 18,240.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.