Home / 28,501.02-39,345.24-20,021.16

Finding the Fourth Proportional to 28,501.02, 39,345.24 and 20,021.16

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Solution

The fourth proportional to 28,501.02, 39,345.24 and 20,021.16 is: 27,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,501.02 : 39,345.24 = 20,021.16 : x
  2. Step 2: Convert to fraction form
    28,501.02/39,345.24 = 20,021.16/x
  3. Step 3: Cross multiply
    28,501.02x = 39,345.24 × 20,021.16
  4. Step 4: Simplify right side
    28,501.02x = 787,737,345.28
  5. Step 5: Solve for x
    x = 787,737,345.28/28,501.02
  6. Step 6: Final answer
    x = 27,638.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.