Home / 22,870.36-31,557.28-13,440.74

Finding the Fourth Proportional to 22,870.36, 31,557.28 and 13,440.74

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Solution

The fourth proportional to 22,870.36, 31,557.28 and 13,440.74 is: 18,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,870.36 : 31,557.28 = 13,440.74 : x
  2. Step 2: Convert to fraction form
    22,870.36/31,557.28 = 13,440.74/x
  3. Step 3: Cross multiply
    22,870.36x = 31,557.28 × 13,440.74
  4. Step 4: Simplify right side
    22,870.36x = 424,153,195.59
  5. Step 5: Solve for x
    x = 424,153,195.59/22,870.36
  6. Step 6: Final answer
    x = 18,545.98

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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.