Home / 21,390.24-32,085.60-9,702.24

Finding the Fourth Proportional to 21,390.24, 32,085.60 and 9,702.24

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Solution

The fourth proportional to 21,390.24, 32,085.60 and 9,702.24 is: 14,553.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390.24 : 32,085.60 = 9,702.24 : x
  2. Step 2: Convert to fraction form
    21,390.24/32,085.60 = 9,702.24/x
  3. Step 3: Cross multiply
    21,390.24x = 32,085.60 × 9,702.24
  4. Step 4: Simplify right side
    21,390.24x = 311,302,191.74
  5. Step 5: Solve for x
    x = 311,302,191.74/21,390.24
  6. Step 6: Final answer
    x = 14,553.47

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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.