Home / 22,430.10-30,953.13-12,359.47

Finding the Fourth Proportional to 22,430.10, 30,953.13 and 12,359.47

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Solution

The fourth proportional to 22,430.10, 30,953.13 and 12,359.47 is: 17,055.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,430.10 : 30,953.13 = 12,359.47 : x
  2. Step 2: Convert to fraction form
    22,430.10/30,953.13 = 12,359.47/x
  3. Step 3: Cross multiply
    22,430.10x = 30,953.13 × 12,359.47
  4. Step 4: Simplify right side
    22,430.10x = 382,564,281.64
  5. Step 5: Solve for x
    x = 382,564,281.64/22,430.10
  6. Step 6: Final answer
    x = 17,055.84

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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.