Home / 28,862.40-39,832.80-16,290.24

Finding the Fourth Proportional to 28,862.40, 39,832.80 and 16,290.24

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Solution

The fourth proportional to 28,862.40, 39,832.80 and 16,290.24 is: 22,482.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.40 : 39,832.80 = 16,290.24 : x
  2. Step 2: Convert to fraction form
    28,862.40/39,832.80 = 16,290.24/x
  3. Step 3: Cross multiply
    28,862.40x = 39,832.80 × 16,290.24
  4. Step 4: Simplify right side
    28,862.40x = 648,885,871.87
  5. Step 5: Solve for x
    x = 648,885,871.87/28,862.40
  6. Step 6: Final answer
    x = 22,482.05

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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.