Home / 28,656.01-39,545.45-15,909.36

Finding the Fourth Proportional to 28,656.01, 39,545.45 and 15,909.36

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Solution

The fourth proportional to 28,656.01, 39,545.45 and 15,909.36 is: 21,955.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.01 : 39,545.45 = 15,909.36 : x
  2. Step 2: Convert to fraction form
    28,656.01/39,545.45 = 15,909.36/x
  3. Step 3: Cross multiply
    28,656.01x = 39,545.45 × 15,909.36
  4. Step 4: Simplify right side
    28,656.01x = 629,142,800.41
  5. Step 5: Solve for x
    x = 629,142,800.41/28,656.01
  6. Step 6: Final answer
    x = 21,955.00

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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.