Home / 19,931.16-29,897.10-8,236.20

Finding the Fourth Proportional to 19,931.16, 29,897.10 and 8,236.20

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Solution

The fourth proportional to 19,931.16, 29,897.10 and 8,236.20 is: 12,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.16 : 29,897.10 = 8,236.20 : x
  2. Step 2: Convert to fraction form
    19,931.16/29,897.10 = 8,236.20/x
  3. Step 3: Cross multiply
    19,931.16x = 29,897.10 × 8,236.20
  4. Step 4: Simplify right side
    19,931.16x = 246,238,495.02
  5. Step 5: Solve for x
    x = 246,238,495.02/19,931.16
  6. Step 6: Final answer
    x = 12,354.45

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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.