Home / 35,869.60-53,804.40-19,280.80

Finding the Fourth Proportional to 35,869.60, 53,804.40 and 19,280.80

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Solution

The fourth proportional to 35,869.60, 53,804.40 and 19,280.80 is: 28,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,869.60 : 53,804.40 = 19,280.80 : x
  2. Step 2: Convert to fraction form
    35,869.60/53,804.40 = 19,280.80/x
  3. Step 3: Cross multiply
    35,869.60x = 53,804.40 × 19,280.80
  4. Step 4: Simplify right side
    35,869.60x = 1,037,391,875.52
  5. Step 5: Solve for x
    x = 1,037,391,875.52/35,869.60
  6. Step 6: Final answer
    x = 28,921.20

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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.