Home / 28,501.92-39,331.85-15,926.67

Finding the Fourth Proportional to 28,501.92, 39,331.85 and 15,926.67

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Solution

The fourth proportional to 28,501.92, 39,331.85 and 15,926.67 is: 21,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.92 : 39,331.85 = 15,926.67 : x
  2. Step 2: Convert to fraction form
    28,501.92/39,331.85 = 15,926.67/x
  3. Step 3: Cross multiply
    28,501.92x = 39,331.85 × 15,926.67
  4. Step 4: Simplify right side
    28,501.92x = 626,425,315.81
  5. Step 5: Solve for x
    x = 626,425,315.81/28,501.92
  6. Step 6: Final answer
    x = 21,978.35

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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.