Home / 28,425.91-42,639.41-9,710.23

Finding the Fourth Proportional to 28,425.91, 42,639.41 and 9,710.23

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Solution

The fourth proportional to 28,425.91, 42,639.41 and 9,710.23 is: 14,565.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.91 : 42,639.41 = 9,710.23 : x
  2. Step 2: Convert to fraction form
    28,425.91/42,639.41 = 9,710.23/x
  3. Step 3: Cross multiply
    28,425.91x = 42,639.41 × 9,710.23
  4. Step 4: Simplify right side
    28,425.91x = 414,038,478.16
  5. Step 5: Solve for x
    x = 414,038,478.16/28,425.91
  6. Step 6: Final answer
    x = 14,565.53

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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.