Home / 28,607.01-39,477.67-15,860.15

Finding the Fourth Proportional to 28,607.01, 39,477.67 and 15,860.15

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Solution

The fourth proportional to 28,607.01, 39,477.67 and 15,860.15 is: 21,887.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.01 : 39,477.67 = 15,860.15 : x
  2. Step 2: Convert to fraction form
    28,607.01/39,477.67 = 15,860.15/x
  3. Step 3: Cross multiply
    28,607.01x = 39,477.67 × 15,860.15
  4. Step 4: Simplify right side
    28,607.01x = 626,121,678.85
  5. Step 5: Solve for x
    x = 626,121,678.85/28,607.01
  6. Step 6: Final answer
    x = 21,887.00

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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.