Home / 28,870.32-39,839.16-16,293.36

Finding the Fourth Proportional to 28,870.32, 39,839.16 and 16,293.36

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Solution

The fourth proportional to 28,870.32, 39,839.16 and 16,293.36 is: 22,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870.32 : 39,839.16 = 16,293.36 : x
  2. Step 2: Convert to fraction form
    28,870.32/39,839.16 = 16,293.36/x
  3. Step 3: Cross multiply
    28,870.32x = 39,839.16 × 16,293.36
  4. Step 4: Simplify right side
    28,870.32x = 649,113,775.98
  5. Step 5: Solve for x
    x = 649,113,775.98/28,870.32
  6. Step 6: Final answer
    x = 22,483.77

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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.