Home / 28,431,349.04-39,235,266.15-15,378,602.24

Finding the Fourth Proportional to 28,431,349.04, 39,235,266.15 and 15,378,602.24

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Solution

The fourth proportional to 28,431,349.04, 39,235,266.15 and 15,378,602.24 is: 21,222,473.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,431,349.04 : 39,235,266.15 = 15,378,602.24 : x
  2. Step 2: Convert to fraction form
    28,431,349.04/39,235,266.15 = 15,378,602.24/x
  3. Step 3: Cross multiply
    28,431,349.04x = 39,235,266.15 × 15,378,602.24
  4. Step 4: Simplify right side
    28,431,349.04x = 603,383,551,901,386.12
  5. Step 5: Solve for x
    x = 603,383,551,901,386.12/28,431,349.04
  6. Step 6: Final answer
    x = 21,222,473.51

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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.