Home / 28,800.95-39,752.83-18,756.95

Finding the Fourth Proportional to 28,800.95, 39,752.83 and 18,756.95

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Solution

The fourth proportional to 28,800.95, 39,752.83 and 18,756.95 is: 25,889.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,800.95 : 39,752.83 = 18,756.95 : x
  2. Step 2: Convert to fraction form
    28,800.95/39,752.83 = 18,756.95/x
  3. Step 3: Cross multiply
    28,800.95x = 39,752.83 × 18,756.95
  4. Step 4: Simplify right side
    28,800.95x = 745,641,967.50
  5. Step 5: Solve for x
    x = 745,641,967.50/28,800.95
  6. Step 6: Final answer
    x = 25,889.49

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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.