Home / 21,427.04-32,130.02-8,943.32

Finding the Fourth Proportional to 21,427.04, 32,130.02 and 8,943.32

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Solution

The fourth proportional to 21,427.04, 32,130.02 and 8,943.32 is: 13,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,427.04 : 32,130.02 = 8,943.32 : x
  2. Step 2: Convert to fraction form
    21,427.04/32,130.02 = 8,943.32/x
  3. Step 3: Cross multiply
    21,427.04x = 32,130.02 × 8,943.32
  4. Step 4: Simplify right side
    21,427.04x = 287,349,050.47
  5. Step 5: Solve for x
    x = 287,349,050.47/21,427.04
  6. Step 6: Final answer
    x = 13,410.58

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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.