Home / 21,384.06-32,075.85-9,689.34

Finding the Fourth Proportional to 21,384.06, 32,075.85 and 9,689.34

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Solution

The fourth proportional to 21,384.06, 32,075.85 and 9,689.34 is: 14,533.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.06 : 32,075.85 = 9,689.34 : x
  2. Step 2: Convert to fraction form
    21,384.06/32,075.85 = 9,689.34/x
  3. Step 3: Cross multiply
    21,384.06x = 32,075.85 × 9,689.34
  4. Step 4: Simplify right side
    21,384.06x = 310,793,816.44
  5. Step 5: Solve for x
    x = 310,793,816.44/21,384.06
  6. Step 6: Final answer
    x = 14,533.90

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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.