Home / 21,343.10-32,014.65-7,490.30

Finding the Fourth Proportional to 21,343.10, 32,014.65 and 7,490.30

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Solution

The fourth proportional to 21,343.10, 32,014.65 and 7,490.30 is: 11,235.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,343.10 : 32,014.65 = 7,490.30 : x
  2. Step 2: Convert to fraction form
    21,343.10/32,014.65 = 7,490.30/x
  3. Step 3: Cross multiply
    21,343.10x = 32,014.65 × 7,490.30
  4. Step 4: Simplify right side
    21,343.10x = 239,799,332.90
  5. Step 5: Solve for x
    x = 239,799,332.90/21,343.10
  6. Step 6: Final answer
    x = 11,235.45

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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.