Home / 28,700.47-43,048.26-9,975.70

Finding the Fourth Proportional to 28,700.47, 43,048.26 and 9,975.70

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Solution

The fourth proportional to 28,700.47, 43,048.26 and 9,975.70 is: 14,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.47 : 43,048.26 = 9,975.70 : x
  2. Step 2: Convert to fraction form
    28,700.47/43,048.26 = 9,975.70/x
  3. Step 3: Cross multiply
    28,700.47x = 43,048.26 × 9,975.70
  4. Step 4: Simplify right side
    28,700.47x = 429,436,527.28
  5. Step 5: Solve for x
    x = 429,436,527.28/28,700.47
  6. Step 6: Final answer
    x = 14,962.70

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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.