Home / 21,437.02-32,155.29-7,582.78

Finding the Fourth Proportional to 21,437.02, 32,155.29 and 7,582.78

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Solution

The fourth proportional to 21,437.02, 32,155.29 and 7,582.78 is: 11,374.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.02 : 32,155.29 = 7,582.78 : x
  2. Step 2: Convert to fraction form
    21,437.02/32,155.29 = 7,582.78/x
  3. Step 3: Cross multiply
    21,437.02x = 32,155.29 × 7,582.78
  4. Step 4: Simplify right side
    21,437.02x = 243,826,489.91
  5. Step 5: Solve for x
    x = 243,826,489.91/21,437.02
  6. Step 6: Final answer
    x = 11,374.09

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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.