Home / 30,005.67-45,014.65-10,285.76

Finding the Fourth Proportional to 30,005.67, 45,014.65 and 10,285.76

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Solution

The fourth proportional to 30,005.67, 45,014.65 and 10,285.76 is: 15,430.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,005.67 : 45,014.65 = 10,285.76 : x
  2. Step 2: Convert to fraction form
    30,005.67/45,014.65 = 10,285.76/x
  3. Step 3: Cross multiply
    30,005.67x = 45,014.65 × 10,285.76
  4. Step 4: Simplify right side
    30,005.67x = 463,009,886.38
  5. Step 5: Solve for x
    x = 463,009,886.38/30,005.67
  6. Step 6: Final answer
    x = 15,430.75

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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.