Home / 24,031.80-36,047.70-21,420.60

Finding the Fourth Proportional to 24,031.80, 36,047.70 and 21,420.60

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Solution

The fourth proportional to 24,031.80, 36,047.70 and 21,420.60 is: 32,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,031.80 : 36,047.70 = 21,420.60 : x
  2. Step 2: Convert to fraction form
    24,031.80/36,047.70 = 21,420.60/x
  3. Step 3: Cross multiply
    24,031.80x = 36,047.70 × 21,420.60
  4. Step 4: Simplify right side
    24,031.80x = 772,163,362.62
  5. Step 5: Solve for x
    x = 772,163,362.62/24,031.80
  6. Step 6: Final answer
    x = 32,130.90

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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.