Home / 21,140.02-31,666.96-10,012.98

Finding the Fourth Proportional to 21,140.02, 31,666.96 and 10,012.98

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Solution

The fourth proportional to 21,140.02, 31,666.96 and 10,012.98 is: 14,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.02 : 31,666.96 = 10,012.98 : x
  2. Step 2: Convert to fraction form
    21,140.02/31,666.96 = 10,012.98/x
  3. Step 3: Cross multiply
    21,140.02x = 31,666.96 × 10,012.98
  4. Step 4: Simplify right side
    21,140.02x = 317,080,533.96
  5. Step 5: Solve for x
    x = 317,080,533.96/21,140.02
  6. Step 6: Final answer
    x = 14,999.06

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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.