Home / 28,038.84-38,689.16-16,708.05

Finding the Fourth Proportional to 28,038.84, 38,689.16 and 16,708.05

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Solution

The fourth proportional to 28,038.84, 38,689.16 and 16,708.05 is: 23,054.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.84 : 38,689.16 = 16,708.05 : x
  2. Step 2: Convert to fraction form
    28,038.84/38,689.16 = 16,708.05/x
  3. Step 3: Cross multiply
    28,038.84x = 38,689.16 × 16,708.05
  4. Step 4: Simplify right side
    28,038.84x = 646,420,336.20
  5. Step 5: Solve for x
    x = 646,420,336.20/28,038.84
  6. Step 6: Final answer
    x = 23,054.46

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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.