Home / 29,235.79-40,345.69-15,807.31

Finding the Fourth Proportional to 29,235.79, 40,345.69 and 15,807.31

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Solution

The fourth proportional to 29,235.79, 40,345.69 and 15,807.31 is: 21,814.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,235.79 : 40,345.69 = 15,807.31 : x
  2. Step 2: Convert to fraction form
    29,235.79/40,345.69 = 15,807.31/x
  3. Step 3: Cross multiply
    29,235.79x = 40,345.69 × 15,807.31
  4. Step 4: Simplify right side
    29,235.79x = 637,756,627.27
  5. Step 5: Solve for x
    x = 637,756,627.27/29,235.79
  6. Step 6: Final answer
    x = 21,814.24

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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.