Home / 28,535.01-42,740.10-14,470.80

Finding the Fourth Proportional to 28,535.01, 42,740.10 and 14,470.80

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Solution

The fourth proportional to 28,535.01, 42,740.10 and 14,470.80 is: 21,674.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,535.01 : 42,740.10 = 14,470.80 : x
  2. Step 2: Convert to fraction form
    28,535.01/42,740.10 = 14,470.80/x
  3. Step 3: Cross multiply
    28,535.01x = 42,740.10 × 14,470.80
  4. Step 4: Simplify right side
    28,535.01x = 618,483,439.08
  5. Step 5: Solve for x
    x = 618,483,439.08/28,535.01
  6. Step 6: Final answer
    x = 21,674.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.