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Finding the Fourth Proportional to 28,595.60, 39,460.16 and 16,020.08

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Solution

The fourth proportional to 28,595.60, 39,460.16 and 16,020.08 is: 22,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,595.60 : 39,460.16 = 16,020.08 : x
  2. Step 2: Convert to fraction form
    28,595.60/39,460.16 = 16,020.08/x
  3. Step 3: Cross multiply
    28,595.60x = 39,460.16 × 16,020.08
  4. Step 4: Simplify right side
    28,595.60x = 632,154,920.01
  5. Step 5: Solve for x
    x = 632,154,920.01/28,595.60
  6. Step 6: Final answer
    x = 22,106.72

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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.