Home / 21,530.34-32,284.98-8,877.74

Finding the Fourth Proportional to 21,530.34, 32,284.98 and 8,877.74

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Solution

The fourth proportional to 21,530.34, 32,284.98 and 8,877.74 is: 13,312.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530.34 : 32,284.98 = 8,877.74 : x
  2. Step 2: Convert to fraction form
    21,530.34/32,284.98 = 8,877.74/x
  3. Step 3: Cross multiply
    21,530.34x = 32,284.98 × 8,877.74
  4. Step 4: Simplify right side
    21,530.34x = 286,617,496.92
  5. Step 5: Solve for x
    x = 286,617,496.92/21,530.34
  6. Step 6: Final answer
    x = 13,312.26

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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.