Home / 28,359.02-42,538.54-11,700.75

Finding the Fourth Proportional to 28,359.02, 42,538.54 and 11,700.75

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Solution

The fourth proportional to 28,359.02, 42,538.54 and 11,700.75 is: 17,551.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,359.02 : 42,538.54 = 11,700.75 : x
  2. Step 2: Convert to fraction form
    28,359.02/42,538.54 = 11,700.75/x
  3. Step 3: Cross multiply
    28,359.02x = 42,538.54 × 11,700.75
  4. Step 4: Simplify right side
    28,359.02x = 497,732,763.40
  5. Step 5: Solve for x
    x = 497,732,763.40/28,359.02
  6. Step 6: Final answer
    x = 17,551.13

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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.