Home / 21,547.10-32,320.37-8,408.70

Finding the Fourth Proportional to 21,547.10, 32,320.37 and 8,408.70

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Solution

The fourth proportional to 21,547.10, 32,320.37 and 8,408.70 is: 12,612.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.10 : 32,320.37 = 8,408.70 : x
  2. Step 2: Convert to fraction form
    21,547.10/32,320.37 = 8,408.70/x
  3. Step 3: Cross multiply
    21,547.10x = 32,320.37 × 8,408.70
  4. Step 4: Simplify right side
    21,547.10x = 271,772,253.18
  5. Step 5: Solve for x
    x = 271,772,253.18/21,547.10
  6. Step 6: Final answer
    x = 12,612.94

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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.