Home / 30,025.12-45,038.61-10,303.42

Finding the Fourth Proportional to 30,025.12, 45,038.61 and 10,303.42

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Solution

The fourth proportional to 30,025.12, 45,038.61 and 10,303.42 is: 15,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,025.12 : 45,038.61 = 10,303.42 : x
  2. Step 2: Convert to fraction form
    30,025.12/45,038.61 = 10,303.42/x
  3. Step 3: Cross multiply
    30,025.12x = 45,038.61 × 10,303.42
  4. Step 4: Simplify right side
    30,025.12x = 464,051,715.05
  5. Step 5: Solve for x
    x = 464,051,715.05/30,025.12
  6. Step 6: Final answer
    x = 15,455.45

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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.