Home / 30,140.16-45,209.28-9,358.08

Finding the Fourth Proportional to 30,140.16, 45,209.28 and 9,358.08

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Solution

The fourth proportional to 30,140.16, 45,209.28 and 9,358.08 is: 14,036.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,140.16 : 45,209.28 = 9,358.08 : x
  2. Step 2: Convert to fraction form
    30,140.16/45,209.28 = 9,358.08/x
  3. Step 3: Cross multiply
    30,140.16x = 45,209.28 × 9,358.08
  4. Step 4: Simplify right side
    30,140.16x = 423,072,058.98
  5. Step 5: Solve for x
    x = 423,072,058.98/30,140.16
  6. Step 6: Final answer
    x = 14,036.82

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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.