Home / 19,407.50-29,114.76-12,839.12

Finding the Fourth Proportional to 19,407.50, 29,114.76 and 12,839.12

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Solution

The fourth proportional to 19,407.50, 29,114.76 and 12,839.12 is: 19,261.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,407.50 : 29,114.76 = 12,839.12 : x
  2. Step 2: Convert to fraction form
    19,407.50/29,114.76 = 12,839.12/x
  3. Step 3: Cross multiply
    19,407.50x = 29,114.76 × 12,839.12
  4. Step 4: Simplify right side
    19,407.50x = 373,807,897.41
  5. Step 5: Solve for x
    x = 373,807,897.41/19,407.50
  6. Step 6: Final answer
    x = 19,261.00

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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.