Home / 28,532.61-42,780.69-13,712.04

Finding the Fourth Proportional to 28,532.61, 42,780.69 and 13,712.04

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Solution

The fourth proportional to 28,532.61, 42,780.69 and 13,712.04 is: 20,559.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,532.61 : 42,780.69 = 13,712.04 : x
  2. Step 2: Convert to fraction form
    28,532.61/42,780.69 = 13,712.04/x
  3. Step 3: Cross multiply
    28,532.61x = 42,780.69 × 13,712.04
  4. Step 4: Simplify right side
    28,532.61x = 586,610,532.51
  5. Step 5: Solve for x
    x = 586,610,532.51/28,532.61
  6. Step 6: Final answer
    x = 20,559.30

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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.