Home / 31,036.16-42,829.48-16,888.98

Finding the Fourth Proportional to 31,036.16, 42,829.48 and 16,888.98

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Solution

The fourth proportional to 31,036.16, 42,829.48 and 16,888.98 is: 23,306.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,036.16 : 42,829.48 = 16,888.98 : x
  2. Step 2: Convert to fraction form
    31,036.16/42,829.48 = 16,888.98/x
  3. Step 3: Cross multiply
    31,036.16x = 42,829.48 × 16,888.98
  4. Step 4: Simplify right side
    31,036.16x = 723,346,231.13
  5. Step 5: Solve for x
    x = 723,346,231.13/31,036.16
  6. Step 6: Final answer
    x = 23,306.56

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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.