Home / 23,090.47-31,864.74-12,480.08

Finding the Fourth Proportional to 23,090.47, 31,864.74 and 12,480.08

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Solution

The fourth proportional to 23,090.47, 31,864.74 and 12,480.08 is: 17,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,090.47 : 31,864.74 = 12,480.08 : x
  2. Step 2: Convert to fraction form
    23,090.47/31,864.74 = 12,480.08/x
  3. Step 3: Cross multiply
    23,090.47x = 31,864.74 × 12,480.08
  4. Step 4: Simplify right side
    23,090.47x = 397,674,368.46
  5. Step 5: Solve for x
    x = 397,674,368.46/23,090.47
  6. Step 6: Final answer
    x = 17,222.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.