Home / 28,526.28-42,810.44-13,533.45

Finding the Fourth Proportional to 28,526.28, 42,810.44 and 13,533.45

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Solution

The fourth proportional to 28,526.28, 42,810.44 and 13,533.45 is: 20,310.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,526.28 : 42,810.44 = 13,533.45 : x
  2. Step 2: Convert to fraction form
    28,526.28/42,810.44 = 13,533.45/x
  3. Step 3: Cross multiply
    28,526.28x = 42,810.44 × 13,533.45
  4. Step 4: Simplify right side
    28,526.28x = 579,372,974.76
  5. Step 5: Solve for x
    x = 579,372,974.76/28,526.28
  6. Step 6: Final answer
    x = 20,310.15

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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.