Home / 28,307.74-39,054.70-16,980.91

Finding the Fourth Proportional to 28,307.74, 39,054.70 and 16,980.91

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Solution

The fourth proportional to 28,307.74, 39,054.70 and 16,980.91 is: 23,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.74 : 39,054.70 = 16,980.91 : x
  2. Step 2: Convert to fraction form
    28,307.74/39,054.70 = 16,980.91/x
  3. Step 3: Cross multiply
    28,307.74x = 39,054.70 × 16,980.91
  4. Step 4: Simplify right side
    28,307.74x = 663,184,345.78
  5. Step 5: Solve for x
    x = 663,184,345.78/28,307.74
  6. Step 6: Final answer
    x = 23,427.67

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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.