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Finding the Fourth Proportional to 28,547.01, 42,758.10 and 14,482.80

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Solution

The fourth proportional to 28,547.01, 42,758.10 and 14,482.80 is: 21,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,547.01 : 42,758.10 = 14,482.80 : x
  2. Step 2: Convert to fraction form
    28,547.01/42,758.10 = 14,482.80/x
  3. Step 3: Cross multiply
    28,547.01x = 42,758.10 × 14,482.80
  4. Step 4: Simplify right side
    28,547.01x = 619,257,010.68
  5. Step 5: Solve for x
    x = 619,257,010.68/28,547.01
  6. Step 6: Final answer
    x = 21,692.53

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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.