Home / 28,900.17-39,886.47-16,970.04

Finding the Fourth Proportional to 28,900.17, 39,886.47 and 16,970.04

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Solution

The fourth proportional to 28,900.17, 39,886.47 and 16,970.04 is: 23,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,900.17 : 39,886.47 = 16,970.04 : x
  2. Step 2: Convert to fraction form
    28,900.17/39,886.47 = 16,970.04/x
  3. Step 3: Cross multiply
    28,900.17x = 39,886.47 × 16,970.04
  4. Step 4: Simplify right side
    28,900.17x = 676,874,991.36
  5. Step 5: Solve for x
    x = 676,874,991.36/28,900.17
  6. Step 6: Final answer
    x = 23,421.14

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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.