Home / 28,501.36-39,331.78-15,926.11

Finding the Fourth Proportional to 28,501.36, 39,331.78 and 15,926.11

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Solution

The fourth proportional to 28,501.36, 39,331.78 and 15,926.11 is: 21,977.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.36 : 39,331.78 = 15,926.11 : x
  2. Step 2: Convert to fraction form
    28,501.36/39,331.78 = 15,926.11/x
  3. Step 3: Cross multiply
    28,501.36x = 39,331.78 × 15,926.11
  4. Step 4: Simplify right side
    28,501.36x = 626,402,254.78
  5. Step 5: Solve for x
    x = 626,402,254.78/28,501.36
  6. Step 6: Final answer
    x = 21,977.98

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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.