Home / 30,947.47-46,420.81-9,887.23

Finding the Fourth Proportional to 30,947.47, 46,420.81 and 9,887.23

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Solution

The fourth proportional to 30,947.47, 46,420.81 and 9,887.23 is: 14,830.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,947.47 : 46,420.81 = 9,887.23 : x
  2. Step 2: Convert to fraction form
    30,947.47/46,420.81 = 9,887.23/x
  3. Step 3: Cross multiply
    30,947.47x = 46,420.81 × 9,887.23
  4. Step 4: Simplify right side
    30,947.47x = 458,973,225.26
  5. Step 5: Solve for x
    x = 458,973,225.26/30,947.47
  6. Step 6: Final answer
    x = 14,830.72

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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.