Home / 28,008.04-42,006.30-13,210.60

Finding the Fourth Proportional to 28,008.04, 42,006.30 and 13,210.60

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Solution

The fourth proportional to 28,008.04, 42,006.30 and 13,210.60 is: 19,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.04 : 42,006.30 = 13,210.60 : x
  2. Step 2: Convert to fraction form
    28,008.04/42,006.30 = 13,210.60/x
  3. Step 3: Cross multiply
    28,008.04x = 42,006.30 × 13,210.60
  4. Step 4: Simplify right side
    28,008.04x = 554,928,426.78
  5. Step 5: Solve for x
    x = 554,928,426.78/28,008.04
  6. Step 6: Final answer
    x = 19,813.18

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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.