Home / 30,647.13-45,970.69-9,870.63

Finding the Fourth Proportional to 30,647.13, 45,970.69 and 9,870.63

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Solution

The fourth proportional to 30,647.13, 45,970.69 and 9,870.63 is: 14,805.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.13 : 45,970.69 = 9,870.63 : x
  2. Step 2: Convert to fraction form
    30,647.13/45,970.69 = 9,870.63/x
  3. Step 3: Cross multiply
    30,647.13x = 45,970.69 × 9,870.63
  4. Step 4: Simplify right side
    30,647.13x = 453,759,441.98
  5. Step 5: Solve for x
    x = 453,759,441.98/30,647.13
  6. Step 6: Final answer
    x = 14,805.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.