Home / 22,243.40-30,692.85-13,289.00

Finding the Fourth Proportional to 22,243.40, 30,692.85 and 13,289.00

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Solution

The fourth proportional to 22,243.40, 30,692.85 and 13,289.00 is: 18,337.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,243.40 : 30,692.85 = 13,289.00 : x
  2. Step 2: Convert to fraction form
    22,243.40/30,692.85 = 13,289.00/x
  3. Step 3: Cross multiply
    22,243.40x = 30,692.85 × 13,289.00
  4. Step 4: Simplify right side
    22,243.40x = 407,877,130.19
  5. Step 5: Solve for x
    x = 407,877,130.19/22,243.40
  6. Step 6: Final answer
    x = 18,337.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.